An organism clade is getting close to the diversity equilibrium. The following might happen Eventually, diversification will be nil.
What makes it an organism?An entity with life is referred to as an organism. In essence, molecules make up both living things and non-living things. A living entity, however, may be distinguished from an inanimate object by its distinguishing traits. For instance, a cell or several cells make form an organism.
Do living things exist?An organism is a form of life that is capable of reproduction: The ability to duplicate oneself is one of the traits of organisms, but this trait is shared by many other biological entities as well, including cells, DNA, organelles, and even even communities.
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Which human activity does not reduce biodiversity? Setting up wildlife preserves where no hunting is allowed Creating large farms > Cutting down trees to use them to build houses Introducing invasive species into a stable ecosystem
Which statement is true about nitrogen gas in the atmosphere?
It is easily absorbed and used by plants and animals.
It's taken in by plants as part of their metabolism.
It's unusable by most forms of life on earth.
It's present in only trace amounts.
The statement that is true about nitrogen gas in the atmosphere is that it is unusable by most forms of life on Earth. Nitrogen gas (\(N_2\)) makes up approximately 78% of Earth's atmosphere, and while it is abundant, it is not directly accessible to most organisms.
Nitrogen gas is composed of two nitrogen atoms held together by a strong triple bond. This bond is difficult to break, and most forms of life lack the necessary enzymes to convert nitrogen gas into a usable form. This inability to directly utilize nitrogen gas is true for both plants and animals.
However, while nitrogen gas is not directly usable, it is a crucial element for life. Nitrogen is an essential component of proteins, nucleic acids (DNA and RNA), and other vital molecules. In order to obtain the necessary nitrogen for growth and development, living organisms rely on the nitrogen cycle.
In the nitrogen cycle, nitrogen gas is converted into biologically usable forms through a process called nitrogen fixation. Nitrogen-fixing bacteria, found in soil and root nodules of certain plants, have the ability to convert nitrogen gas into ammonia (\(NH_3\)) or nitrate (\(NO^3^-\)). These forms of nitrogen can then be taken up by plants as part of their metabolism.
Once incorporated into plants, nitrogen can be passed on to animals through the consumption of plant material. Animals obtain nitrogen by consuming plants or other animals that have already assimilated nitrogen into their tissues.
In conclusion, nitrogen gas in the atmosphere is unusable by most forms of life on Earth. It requires conversion into biologically usable forms through nitrogen fixation by bacteria, and then it can be taken up by plants as part of their metabolism. This indirectly allows nitrogen to enter the food chain and be utilized by animals.
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why does out body function the way that it does?
Hormones are chemicals that coordinate different functions in your body by carrying messages through your blood to your organs and other tissues.
How does the body know its function?Every body part has a function each part of the body has a certain function. Scientists divide the human body into structures to better understand how its parts link with each other and to function as a whole. A body system is a group of body parts that work jointly to perform a certain job.
Body functions are the physiological or psychological functions of body systems. The body's functions are eventually its cells' functions. A function body is an amalgam statement containing statements that specify what the function does. The range of a function involves its domain. A vertical line is an example of a functional relationship.
So we can conclude that The human function body is the structure of a human being.
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Question #4-8: Fill in the missing vocabulary word in the blanks below
Cells have many small objects called (4)
that perform specific functions for the cell. Some are found in plant cells, but not animal cells. One example is the (5)
, which provides support and forms an extra barrier outside of the cell membrane. The (6)
contains chlorophyll, which is necessary for a plant cell to produce energy through (7)
. Plant cells also include a large central (8)
, which stores food, water, and waste.
Answer: Organelles
The plasma membrane
chloroplasts,
photosynthesis
vacuole
Fecal coliform is an indicator of what type of disease?
Answer:
Explanation:
Some waterborne pathogenic diseases include typhoid fever, viral and bacterial gastroenteritis and hepatitis A. The presence of fecal contamination is an indicator that a potential health risk exists for individuals exposed to this water.
Answer:
Thermotolerant coliform bacteria (commonly referred as fecal coliforms) are the group most frequently used as indicators of fecal pollution because they behave in a similar way to most pathogenic bacteria in the environment, and, during treatment, they are abundant and easy to determine.
SECTION B: QUESTION 2 2.1 The diagram below shows part of the human ear. 2.1.1 2.1.2 2.1.3 2.1.4 E A B C Explain the consequence if structure E lost its flexibility. Describe the process of hearing. D 2.Z Identify structures A and B Give the LETTER and the NAME of the parts that: (a) equalises pressure on both sides of the tympanic membrane (b) absorbs excess pressure waves from the inner ear (2) (2) (2) (2) (7) (15)
If structure E (stapes) lost flexibility, it would impair sound transmission, leading to hearing sensitivity.
Process of hearing: Sound waves enter the ear, vibrate the eardrum (tympanic membrane). Ossicles (A: malleus, B: incus) amplify vibrations to inner ear. Vibration of fluid in cochlea stimulates hair cells, converting to electrical signals for interpretation.
Structure A: Malleus
Structure B: Incus
(a) Structure C (eustachian tube) equalizes pressure on both sides of the tympanic membrane.
(b) Structure D (round window) absorbs excess pressure waves from the inner ear.
If structure E, which is the ossicles (specifically the malleus, incus, and stapes), lost its flexibility, it would have a significant consequence on hearing. The ossicles play a crucial role in the process of sound transmission. They amplify sound vibrations that enter the ear through the outer ear and transfer them to the inner ear. The flexibility of the ossicles allows them to vibrate in response to sound waves, transmitting these vibrations to the fluid-filled cochlea in the inner ear.If structure E lost its flexibility, the transmission of sound vibrations would be impaired. This would result in a reduced ability to perceive and interpret sound. Hearing sensitivity would be significantly compromised, and sounds may appear muffled or distorted. It may become challenging to distinguish different pitches or understand speech clearly.The process of hearing involves several steps. When sound waves enter the outer ear, they travel through the ear canal and reach the eardrum (tympanic membrane). The vibrations of the eardrum are then transferred to the ossicles (structures A and B in the diagram), which amplify and transmit the vibrations to the cochlea (structure C). The cochlea is responsible for converting the mechanical vibrations into electrical signals that can be interpreted by the brain. These signals are then sent to the brain via the auditory nerve, where they are processed and perceived as sound.Structure A, known as the Eustachian tube, equalizes pressure on both sides of the tympanic membrane. It connects the middle ear to the back of the throat, allowing air to flow in and out, maintaining equal pressure on both sides of the eardrum.Structure B, called the round window, acts as a pressure relief valve. It absorbs excess pressure waves from the inner ear, preventing damage to delicate structures by allowing fluid in the cochlea to move in response to the sound vibrations.Overall, the ear is a complex and intricate system that relies on the interaction of various structures to enable the sense of hearing.For more such questions on Hearing sensitivity:
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Hearing involves a process of sound wave transduction through the tympanic membrane and ossicles. If the tympanic membrane (E) loses its flexibility, sound quality may diminish. The Eustachian tube and cochlea serve to manage pressure within the ear.
Explanation:The process of hearing (audition) involves the transduction of sound waves into a neural signal. When the tympanic membrane (structure E in your diagram), or eardrum, is struck by sound waves, it vibrates. These vibrations are then transferred to the ossicles, which are three small bones in the middle ear. The ossicles are identified as structures A (Malleus or Hammer) and B (Incus or Anvil) in your diagram. Sound waves are finally transduced into a neural signal in the inner ear.
If the tympanic membrane was to lose its flexibility, it would not vibrate as effectively when struck by sound waves. This could diminish the quality of sound and potentially lead to hearing loss.
The Eustachian tube equilibrates air pressure on both sides of the tympanic membrane. This would be your answer to part (a) of the lettered question. Part (b) refers to the role of the cochlea in the inner ear, which helps to absorb excess pressure waves from the inner ear.
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19. Which statement about epithelium is correct?
It traps dust, pollen, and other particles.
It is thin tissue that lines the alveoli
It closes the windpipe when swallowing
It warms and humidifies inhaled air
Answer:
It is thin tissue that lines the alveoli
Hope this helps.
Answer:
B. It is thin tissue that lines the alveoli.
Explanation:
gradpoint
Why are Euglena and Trypanasoma placed in different classes?
Explanation:
Euglena and Trypanosoma are placed in different classes because they belong to different taxonomic groups based on their distinct characteristics, evolutionary relationships, and overall organization. The classification of organisms is determined by their shared similarities and differences, allowing scientists to group them into various hierarchical categories.
Euglena and Trypanosoma belong to different classes due to the following reasons:
1. Morphological Differences: Euglena is a unicellular, freshwater protist that possesses a characteristic whip-like tail called a flagellum, allowing it to move and propel itself. It also contains a photosynthetic pigment called chlorophyll, enabling it to perform photosynthesis. On the other hand, Trypanosoma is a parasitic protist that causes diseases such as African sleeping sickness and Chagas disease. It possesses a single flagellum but lacks chlorophyll and cannot perform photosynthesis.
2. Evolutionary Relationships: Classification takes into account the evolutionary relationships between organisms. Euglena belongs to the class Euglenophyceae, which includes various species of photosynthetic protists. They are considered to be a diverse group that originated from a common ancestor. Trypanosoma, however, belongs to the class Kinetoplastea, which includes various parasitic flagellates. These organisms are not closely related to Euglena, indicating a distinct evolutionary history.
3. Biochemical and Genetic Differences: Euglena and Trypanosoma also differ biochemically and genetically. They have distinct cellular structures, metabolic pathways, and genetic compositions that contribute to their unique characteristics and lifestyles. These differences further support their classification into separate classes.
By considering these factors, taxonomists and scientists classify organisms into appropriate hierarchical categories, ensuring that organisms with shared characteristics are grouped together while differentiating them from organisms with distinct features. The placement of Euglena and Trypanosoma in different classes reflects their distinct biological attributes and evolutionary histories.
Answer:
Explanation:
Euglena and Trypanosoma are both unicellular organisms that belong to the kingdom Protista, but they are placed in different classes because they have different characteristics and lifestyles. Euglena is a photosynthetic organism that can produce its own food using sunlight, and it has a structure called a chloroplast that contains pigments such as chlorophyll. It also has a flagellum, which it uses to move around in its aquatic environment. Euglena belongs to the class Euglenophyceae, which includes other photosynthetic unicellular organisms that have similar characteristics. On the other hand, Trypanosoma is a parasitic organism that feeds on the blood of its host, and it does not have the capability to photosynthesize. It moves by using a single flagellum and has a unique structure called a kinetoplast, which contains DNA and other important cellular components. Trypanosoma belongs to the class Kinetoplastea, which includes other parasitic unicellular organisms that have similar characteristics. Therefore, Euglena and Trypanosoma are placed in different classes based on their different modes of nutrition, locomotion, and other morphological and physiological characteristics.
How much time is needed for a 15,000 W engine to do 1,800,000 J of work ? (Power: P = W/t)
Answers:
T =120s
Explanation:
P=15,000
W=1,800,000 J
P=W/T
T=W/P
T=1,800,000 J/15,000W
=120s
A 93-year-old woman, diagnosed with cancer, takes pain medication to deal with the cancer pain. She becomes dizzy and lightheaded as a side effect of the medication. This causes her to fall in the bathroom and hit her head on the bathtub. Her fall causes a brain bleed which, ultimately, causes her death.What was the victim’s manner of death? Explain.
Answer:
The victim's manner of death in this case was accidental. This is because the victim's death was caused by an unforeseen and unintentional event, namely, the fall in the bathroom due to the side effects of the pain medication. Since the fall was not intentional and was not foreseeable given the circumstances, the manner of death is classified as an accident.
Use what you know about fossils to choose the correct answers from the drop-down menus to complete each statement.
If the same organism appears on two different continents, this is evidence of
.
Fossils show how organisms change, or
, over time.
Fossils provide a record of animals that are
, or no longer living.
Answer:
1. Plate movement
2.evolve
3.extinct
Explanation:
Got it right on edge! 2022
The correct answer with respect to their characteristics are as follows:
If the same organism appears on two different continents, this is evidence of plate movement. Fossils show how organisms change over time is known as Evolution. Fossils provide a record of animals that are no longer living is known as Extinction. What is Fossil?Fossils may be defined as the dead and organic remains of past organisms that were buried deep into the soil millions of years ago. In a more simple form, it is characterized as the remains or traces of plants and animals that live a long time ago.
Due to the phenomenon of plate movement, identical types of organisms may appear on two different continents with alterations in their habitats.
Evolution may be defined as a process through which organisms or fossils show an event of gradual alteration with respect to time. While extinction is the phenomenon through which organisms are eliminated from the environment due to any means like habitat destruction.
Therefore, the correct terms with respect to their characteristics are appropriately mentioned-above.
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ABCDEFGHIJKLMNOPWRSTUVWXYZ
Answer:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Explanation:
THATS THE CORRECT WAY to do. the alphabet
What is the density of a rock which has a mass of 35 grams and a volume of 7 cm3
Answer: Density equals mass divided by volume (D=M/V). Thus, 35/7=5.
The density of a rock which has a mass of 35 grams and a volume of 7 cm3. So, the density of the rock is 5 grams per cubic centimeter (g/cm³).
To calculate the density of an object, you can use the formula:
Density (ρ) = Mass (m) / Volume (V)
Given the mass (m) of the rock is 35 grams and its volume (V) is 7 cm³, you can plug these values into the formula to calculate the density:
Density (ρ) = 35 g / 7 cm³ = 5 g/cm³
Understanding density is crucial for comprehending the behavior of various materials and substances in different contexts, from the properties of solids and liquids to the movement of gases in the atmosphere.
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Give a description and one or two examples of these functions in the body. (Immunity)Could you please simplify/condense the answer to as few sentences as possible? Please and thank you.
Immunity is a physiological process that allows an organism to maintain homeostasis (internal equilibrium) in the presence of harmful agents, be biological (pathogens) or chemical (contaminants, radiation). The immune system is composed of a variety of cells and molecules each with a specific function. Main types of cells are: leucocytes such as neutrophils, linfocytes, eosynofils, basofils, mastocytes, monocytes, and macrophages. Main molecules: antibodies, antigens, histamine, etc.
There are physical barriers such as mucose, however, when a pathogen surpasses them, their innate immune system enters into action. It is characterized because doesn't confer long-lasting immunity and is none specific. There is a second type of immune response, which is the adaptive immune system, this one is quite specific, and leads to immunological memory.
Examples
Physical barrier: mucose in the nose
innate immune system: Fever during infectious disease.
adaptive immune system: response triggered by a vaccine, the antigen is recognized and stored in cellular memory.
Which best describes the process that occurs when nuclear DNA codes for a protein in the cytoplasm
Answer:
Transcription is the process
Translation is the process that occurs when nuclear DNA codes for a protein in the cytoplasm.
How DNA is translated into protein?Transcription is defined as a process where DNA is transcribed into mRNA. Translation occurs in the cytoplasm inside the ribosomes where mRNA is translated and synthesized into a protein with the help of rRNA and tRNA.
DNA is the genetic material, which is transcribed into mRNA, this process copies the DNA into another nucleotide sequence, and this messenger RNA is passed into the nucleus, where it translates.
In the cytoplasm, mRNA is translated into the amino acid sequence with the help of ribosome and tRNA.
Therefore, translation best describes the process that occurs when nuclear DNA codes for a protein in the cytoplasm.
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Slides: Are there striations across the width of the muscle cells? Number of Nuclei? What are the size, shape, and arrangement of fibers? What function occurs as a result of the contractions in the selected muscle? (see page 3 of the lesson) What is the relationship between structure and function in the selected muscle? (see page 3 of the lesson)
Muscle - Human Cardiac
Intestines - Outer Wall Detail (smooth muscle)
Slide 1: Muscle- Skeletal Longitudinal Section
and
Slide 2: Muscle-Skeletal Cross Section
Answer:In slides 1 and 2, the muscle cells are skeletal muscle cells, which are known for their characteristic striations. These striations are visible when looking at the cells in both a longitudinal and cross-sectional view, indicating that the striations run across the width of the muscle cells.
Number of Nuclei:
Skeletal muscle cells typically have multiple nuclei, which are visible in both slides 1 and 2. The number of nuclei in a skeletal muscle cell can vary, but it is typically between 1 and 20.
What are the size, shape, and arrangement of fibers?
In slides 1 and 2, the fibers of the skeletal muscle are elongated and cylindrical in shape. They are arranged in parallel bundles, with the fibers running parallel to each other. The size of the fibers can vary, but they are typically between 10 and 100 micrometers in diameter.
What function occurs as a result of the contractions in the selected muscle?
The function of skeletal muscle is to produce movement. When the skeletal muscle fibers contract, they shorten and pull on the bones they are attached to, causing movement at the joints. This is the function that occurs as a result of the contractions in the selected muscle.
What is the relationship between structure and function in the selected muscle?
The structure of skeletal muscle, specifically the size, shape, and arrangement of the fibers, is directly related to its function. The elongated, parallel arrangement of the fibers allows for efficient and coordinated contractions, which are essential for producing movement. Additionally, the size of the fibers is related to the strength and power of the muscle, with larger fibers being able to produce more force than smaller fibers. Overall, the relationship between structure and function in the selected muscle is one of interdependence, with the structure of the muscle enabling it to perform its specific functions.
Explanation:
All organisms must break down what substance to create energy?
Explanation:
Organisms ingest organic molecules like the carbohydrate glucose to obtain the energy needed for cellular functions. The energy in glucose can be extracted in a series of chemical reactions known as cellular respiration.
Science is best described as a:
1. set of facts
2. process to test hypothesis
3. a study of ethnics and belief systems
4. list of rules
The diagram shows the structure of glucose, a molecule that organisms make and use.
The structural formula of glucose, C6H1206, shows a ring of 5 carbon atoms and 1 oxygen atom. Four carbons in the ring are each bonded to an -H and an -OH group. The fifth carbon is bonded to a CH2OH group.
The structure of glucose illustrates which of the following properties of carbon?
A. Carbon can form bonds with several other elements.
B. A carbon atom can bond with up to five other atoms.
C. Carbon atoms can bond only with oxygen.
D. Carbon can form bonds with only hydrogen.
E. Carbon atoms can form rings of hexagons only.
Answer:
A
Explanation:
This property is illustrated by the bond it forms with other carbon atoms, oxygen and hydrogen
If segmentation has been done correctly, then the segments should reflect homogeneity within each segment and across/ between segments. This statement is ______________
Answer:
The correct answer is - true.
Explanation:
The given statement is true as common marketable traits are observed between the segments it would represent homogeneity. This same segment would be representing homogeneity within each segment and between segments that would be heterogeneity in order to propagate the market.
If segmentation has been done correctly, then the segments should reflect homogeneity within each segment and across/ between segments. This statement is TRUE.
In biology, segmentation refers to the embryonal process where different parts of the body are formed during development.Segmentation can be defined as the repetition of two or more body units along the anterior-posterior axis.Segmentation is a fundamental process in insect and mammal development.In conclusion, if segmentation has been done correctly, then the segments should reflect homogeneity within each segment and across/ between segments. This statement is TRUE.
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hai tính chất nào của enzymes giúp nó trở thành chất xúc tác đặc biệt ?
Answer:helo me sjudjkmsExplanation:
From where do autotrophs obtain their energy?
Other organisms
O From fertilizers
Other decaying organisms
O The sun
Answer:
B
Explanation:
. If Haily is analyzing samples of chromosomes under a microscope which feature would help her categorize the different samples? A. Genetic makeup B. Arm length C. Shape D. Centromere placement E. None of the above
Answer:
B. Arm length
C. Shape
D. Centromere placement
Explanation:
Cytogenetics is a discipline that study the structure and number of chromosomes including their morphology, position of the centromere, arm length, staining bands, etc. These features can be observed by microscope and enable us to identify different genome rearrangements (i.e., translocations, deletions, centric fusion, chromosome duplications, etc.) by ilustrating chromosomes in defined pictures referred to as karyotypes. In consequence, they are chromosome features that can be used in order to categorize different samples.
Someone help!!! Please ASAPPP
Which statement describes the relationship between science and society?
18. Which tool of the biologist is more suitable for culturing bacteria in the
laboratory?
A. Test tubes
C. Perti dishes
B. Microscopes
D. Beakers
Answer:
I think C. Petri dishes
Explanation:
"The most common growth media nutrient broths (liquid nutrient medium) or LB medium (Lysogeny Broth) are liquid. These are often mixed with agar and poured into Petri dishes to solidify. These agar plates provide a solid medium on which microbes may be cultured."-https://courses.lumenlearning.com/boundless-microbiology/chapter/culturing-bacteria/
I hope this helps!
Methane is a molecule that has four hydrogens covalently bonded to one carbon atom and is the major component in
Answer:
hydrocarbons
Explanation:
Write out a summary that will go with your model to explain what it is showing. Remember that this should be scientifically accurate, but it's an explanation for elementary school students. Your summary should include:
Position and motion of the solar system (You did this in the Module 2 Check Your Learning activity! Modify your formal explanation for a younger audience.)
How the universe was formed through the Big Bang Theory (You did this in the Module 1 Check Your Learning activity! Modify your formal explanation for a younger audience.)
The planets orbit the Sun in the same plane and the Big Bang Theory states an explosion of space, marked the beginning of our cosmos.
What is Big Bang Theory?The galactic plane and the planetary orbital plane form a roughly 60° angle as the Solar System travels through the galaxy.
As it circles around the Milky Way, the Sun appears to move up and down and in and out of the galaxy.
The Big Bang, an explosion of space, marked the beginning of our cosmos. Space expanded, the cosmos cooled, and the basic elements emerged from a very high density and temperature starting point.
The first stars and galaxies were created as a result of the slow gathering of stuff by gravity.
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11) Assume a population of deer has a crude birth rate of 26 per 1,000/yr, a crude death rate of 15 per 1,000/yr, an immigration rate of 7 per 1,000/yr, and a emigration rate of 9 per 1,000/yr. What is the population growth rate
Answer:
9 per 1,000/yr.
Explanation:
The population growth rate is 9 per 1,000/yr.
The rate of growth of population is determined by the following formula:
Growth rate = B - D + I - E
Where B = birth rate, D = death rate, I = immigration, and E = emigration
In this case, B = 26, D = 15, I = 7, and E = 9. Substitute these values into the equation of growth rate.
Growth rate = (26 - 15) + (7 - 9)
= 11 - 2 = 9
Hence, the growth rate of the deer's population is 9 per 1,000/yr.
In the diagram below, which cells are involved in the process of sexual reproduction? A.) cell 3, only B.) cell 1 only C.) cell 1 and 2 D.) cell 2 and 3
Cell 1 and 2 are involved in the process of sexual reproduction which are sperm and egg respectively.
What are gametes?Gametes are reproductive cells that are responsible for sexual reproduction. In animals and plants, gametes are typically specialized cells that are specifically designed for the purpose of reproducing and transmitting genetic information from one generation to the next. Gametes are produced by the process of gametogenesis, which is the process of forming and developing gametes.
In animals, gametes are typically either eggs (ova) in females or sperm in males. Eggs are large, non-motile cells that contain a large amount of cytoplasm and nutrients to support the development of an embryo. Sperm are smaller, motile cells that are specialized for fertilization and are capable of swimming through the female reproductive tract to reach the egg.
In plants, gametes are typically produced by specialized cells called gametophytes. Gametophytes produce gametes through a process called meiosis, which is a type of cell division that results in the production of four genetically diverse daughter cells. The gametes produced by gametophytes are typically small and non-motile, and they are capable of fusing with gametes from other plants to produce a fertilized egg, or zygote.
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