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Quail use feathers for thermoregulation, flight and camouflage. What type of adaptation are feathers?
A. Structural
B. Behavioral
C. Physiology
D. Feathers are not an adaptation
Answers
Answer:
structural
Explanation:
In addition to flight and body feathers, birds also have down feathers. Down feathers are soft and fluffy because they don't have barbules and barbicels (the structures that hook feather barbs together). Down feathers help to keep a bird warm by trapping air close to the body, which insulates the bird from the cold.
Related Questions
As humans clear natural areas for development, they destroy and fragment the habitats of other species such as corn snakes. This results in the snakes having to coexist in a much smaller area. What could be a negative effect of such an overpopulation of corn snakes in these small areas? A. The corn snakes will start to feed on each other. B. Disease will spread quickly among the corn snakes. C. Tree and grass cover will decrease in the area. D. The populations of other species will increase.
Answers
The negative effect of such an overpopulation of corn snakes in these small areas is a disease will spread quickly among the corn snakes, option B is correct.
The overpopulation of corn snakes in small areas can lead to negative effects such as the rapid spread of disease among the snake population. When snakes are forced to coexist in a smaller habitat due to human development, they become more susceptible to stress, overcrowding, and compromised immune systems.
These conditions create an ideal environment for diseases to spread. Close proximity and increased contact among the snakes facilitate the transmission of pathogens, including bacteria, viruses, and parasites. Such diseases can have detrimental effects on the overall health and survival of the corn snake population, option B is correct.
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Shira is analyzing samples of red blood cells using a microscope. Her observations are shown.
Shira observes that the shape of Cell A appears normal, while Cell B appears swollen and Cell C is shrunken. The apparent shrinking of Cell C indicates the reaction of the cell to what?
Answers
The shrinking of cell indicates that the solute concentration outside the cell is high is called Osmosis.
Osmosis is one of the important parts of the transportation o minerals and nutrients and tells about the physiology of the plants and osmosis means the transportation of water from higher concentration to lower concentration that is down the gradient and also it can be defined as the movement of water from lower concentration of solute to higher
concentration of solute which is gains the gradient but in terms of solute and this transport takes place in the presence of semi permeable membrane without which osmosis is not possible so according to this in the given situation the cell C shrinks because the concentration of the solute is higher outside the cell than inside the cell which means the concentration of water inside the cell is high and as water moves from high concentration to low concentration so water will move from inside the cell to outside the cell and as water is reduced the cell will shrink and this water can be replaced by any solvent it will behave the same and it can also be said as the process of diffusion or spontaneous net movement of the solvent and this can have different effects on red blood cells.To know more about osmosis click at https://brainly.com/question/1799974
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Question 3 How many phenotypes result from a dihybrid cross involving completely linked genes (i.e., no crossover)?
A) 6
B) 2
C) 9:3:3:1
D)4
Answers
The number of phenotypes result from a dihybrid cross involving completely linked genes is B. 2.
A dihybrid cross is a genetic cross between two individuals who are both heterozygous for two distinct genes. The inheritance of both genes is studied in dihybrid cross. There are various aspects of Mendelian genetics that a dihybrid cross may demonstrate.
The law of independent assortment is demonstrated in a dihybrid cross involving unlinked genes. When two unlinked genes on two different chromosomes are considered, the F2 offspring will show a 9:3:3:1 phenotypic ratio. When both genes are completely linked, the F1 offspring will have only two phenotypes. In other words, in a completely linked dihybrid cross, only two phenotypes will be produced by the F1 offspring. Answer: B) 2
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2. The portion of the root that takes in the water and plant nutrients is the
a. root cap.
C. root hair.
b. area of root division.
d. area of cell maturation.
Answers
Answer: C. Root Hair
Explanation: Single celled and large surface area, perfect for absorption of water and nutrients! Root hairs are long, thin, single cell extensions from the epidermis. They profoundly increase the overall root surface area and connection with the soil and are responsible for absorbing water and mineral nutrients.
The natural role of restriction enzymes in bacteria is to make conjugation more efficient. allow transposons to move to another place in the chromosome. protect the cell from invading phages. allow cells to accept foreign DNA. provide the cell with new phenotypes, such as antibiotic resistance.
Answers
Answer:
protect the cell from invading phages
Explanation:
The natural role of the restriction enzymes is to protect the cell from invading phages.
The restriction enzyme is an enzyme that functions by cutting DNAs from some pre-identified sites on the DNA. They are primarily found in bacteria where they protect the cell from invasion by foreign DNA from phages.
Once a phage invades a bacterium, the restriction enzyme quickly acts by cutting the phage's DNA into smaller pieces, leading to the destruction of the DNA and hence, the protection of the bacterium cell.
Oxygen gas (o2) is an example of a/an __________. a. element b. mixture c. compound d. cell
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within the plants, which is the sister group to the conifers?
a. Gingko
b. Cycads
c. Angiosperms
d. The group containing both gingko and cycads
Answers
The sister group to the conifers is the group containing both gingko and cycads. So option D is correct.
Gingko and cycads are two groups of ancient seed plants that are considered the closest relatives to the conifers, which are a group of seed plants that produce cones instead of flowers.
These three groups belong to the division Pinophyta and are believed to have evolved from a common ancestor.
Angiosperms, or flowering plants, are a separate group of plants that belong to the division Magnoliophyta. They are not considered the sister group to the conifers but are instead a more derived group that evolved later in the plant kingdom.
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What abiotic and biotic factors are used to classify biomes?
Answers
Answer:
Abiotic factors are the physical and chemical factors that determine the characteristics of a biotope: luminosity, pressure, temperature, humidity, salinity, etc. ... Biotic factors are those related to living beings that inhabit a biotope and the relationships that are established with each other.
Explanation:
under standard conditions, total how many molecules of atp could be generated from metabolism of one glucose molecule?
Answers
Under standard conditions, 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
Glucose is converted to ATP through a metabolic process termed cellular respiration. Two of the processes involved in cellular respiration are glycolysis and pyruvate oxidation.
When oxygen comes into contact with a substance or an element, an oxidation reaction occurs. Another way of defining oxidation is the removal of hydrogen from reactant species. When an ion, particle, or molecule loses electrons, it goes through oxidation.
In the mitochondria of living things (animals and plants), the process of breaking down sugar in the presence of oxygen releases energy in the form of ATP. Carbon dioxide and water waste are produced as a result of this process.
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How does a mutating virus impact vaccinations? What would happen to the effectiveness of the current vaccination if a mutation in the virus caused the protein spike to change?
Answers
A vaccine is a medical product. Vaccines, though they are designed to protect from disease, can cause side effects, just as any medication can. When a virus is widely circulating in a population and causing many infections, the likelihood of the virus mutating increases. The more opportunities a virus has to spread, the more it replicates – and the more opportunities it has to undergo changes. Most viral mutations have little to no impact on the virus’s ability to cause infections and disease.
*PLEASE ANSWER IM BEING TIMED!!*
Most ecosystems tend to be complex because
they are found in all climates.
potential competitors in the ecosystem often occupy slightly different niches.
they all contain a wide variety of producers.
of symbiotic relationships within them.
Answers
Answer:
the most likely answer is option 3
they all contain a wide variety of producers
Which of the following statements is/are true regarding adaptations of the human upper limbs for bipedalism? Check All That Apply 1.They are shorter than the lower limbs 2.Good hand mobility allows for manipulating objects 3.They are adapted for locomotion 4.The shoulder joint hos less mobility than the hip joint
Answers
The true statements regarding adaptations of the human upper limbs for bipedalism are:
1. They are shorter than the lower limbs.
2. Good hand mobility allows for manipulating objects.
1. They are shorter than the lower limbs - This statement is true. One of the adaptations of the human upper limbs for bipedalism is that they are shorter than the lower limbs. This is because the lower limbs support the body weight and need to be longer to provide stability and balance, whereas the upper limbs are used for manipulation and do not require as much length.
2. Good hand mobility allows for manipulating objects - This statement is also true. One of the advantages of bipedalism is that it frees up the hands for manipulating objects. The human upper limbs are adapted for grasping, manipulating, and carrying objects, which is made possible by good hand mobility.
3. They are adapted for locomotion - This statement is somewhat ambiguous and could be interpreted in different ways. If by "they" we mean the upper limbs, then this statement is partly true. While the primary function of the upper limbs is not locomotion, they are still involved in the act of walking and provide balance and counterbalance during movement. However, if by "they" we mean the human body as a whole, then this statement is true. Bipedalism is a form of locomotion, and the human body is adapted for this mode of movement.
4. The shoulder joint has less mobility than the hip joint - This statement is false. The shoulder joint is actually one of the most mobile joints in the human body and allows for a wide range of movements, including flexion, extension, abduction, adduction, and rotation. In contrast, the hip joint is a ball-and-socket joint that provides stability and support but has less range of motion than the shoulder joint.
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Does anybody know which biome the climatogram shows in the picture?
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What are the structures of chromosomes that cause traits
Answers
Answer:
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
Explanation:
which of the following organisms would be most likely to be preserved in the geologic record?
Answers
Answer:
Organisms with hard parts, such as shells, bones, or teeth, are most likely to be preserved in the geologic record. This is because hard parts are more resistant to decay and erosion than soft tissues.
Explanation:
Which phases of cellular respiration occur in the mitochondria?
Answers
Answer:
G2 phase occurred in mitochondria
Certain flightless beetles have wings. Their wings are an example of which type of structure? Question 3 options: vestigial structure homologous structure embryonic structure adapted structure.
Answers
The correct answer is Certain flightless beetles have wings. Their wings are an example of an adapted structure.
These beetles have adapted structure in them and it is inherited from their ancestor's gene pool. as the time passes by the flightless beetles don't have wings as it was not needed but later become adopted due to environmental needs.
What is adapted structure?Thick, hardened beetle wings, called elytra, cover the whole body and it has covered whole body of beetles. The adaptive features are inherited from their ancestor's gene pool.
Hence concluded that adapted structures in flightless beetles have wings. Their wings are an example.
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What type of system is required to maintain the amount of sugar in the blood at a certain
level, making sure it does not rise too high or fall too low?
Answers
Answer:
The Digestive system.
Explanation:
Even though the Cardiovascular system pumps the blood in the body, blood sugar is dependent on the regulating hormones insulin and ketone. Which are created in the liver. And the liver is part of the Digestive system. Diabetes, hypoglycemia and hyperglycemia are results of a faulty liver.
PLEASE HELP!! DNA mutations and cancer activity
Answers
Answer:
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Explanation:
The muscles of a tired jogger begin to undergo lactic acid fermentation. As a result, the jogger is most likely to
A) absorb more oxygen with each breath
B) release less carbon dioxide with each breath
C) experience an increase in blood pH
D) experience a “burning” sensation in the muscles
Answers
Answer:
D: experience a “burning” sensation in the muscles
Explanation: Based on the information in the lesson, this option makes the most sense.
"When lactate builds up, the blood’s pH drops and the muscles fatigue. This is why you may feel your muscles "burn" from the buildup of lactic acid."
In the given scenario, the jogger will experience a “burning” sensation in the muscles. The correct option is D.
What is muscle fatigue?Muscle fatigue is the loss of a muscle's capacity to create force. It can be caused by strenuous exercise, but abnormal fatigue can also be caused by impediments to or interference with the various stages of muscle contraction.
When lactate levels rise, the pH of the blood falls and the muscles fatigue. That's why individuals may feel their muscles "burn" as lactic acid builds up.
Thus, the correct option is D.
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Which is the most likely correct sequence of events involve in the evolution of early life?.
Answers
Evolution is the slow change that takes place due to various factors leading to the formation of new characters. Its sequence is first anaerobic cells formed, photosynthesis, presence of oxygen, and finally aerobic cell.
What is the procedure of evolution?Evolution shows the adaptations of organisms according to their changing environments and results in altered genes, novel traits, and new species.
It can occur by following process:
Mutation.Gene flow.Natural selection.Non-random mating.Genetic drift.There comes first anaerobic cells, then photosynthesis and oxygen presence and then finally aerobic cell.
Thus, the proper sequence of events involve in the evolution of early life is anaerobic cell--photosynthesis--presence of oxygen--aerobic cell.
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What is the process heterotrophs use to obtain energy from other organisms.
Answers
Answer:
Chemosynthesis
Explanation:
is used to produce food using the chemical energy stored in inorganic molecules
extreme rarity' can be described as: group of answer choices restricted range, narrow habitat tolerances, and small local populations restricted range, broad habitat tolerances, and large local populations extensive range, narrow habitat tolerances, and large local populations restricted range, broad habitat tolerances, and small local populations extensive range, broad habitat tolerances, and small local populations
Answers
The correct option is A; Restricted range, narrow habitat tolerances, and small local populations ,
Net reproductive rate (r) is computed as r = (births-deaths)/population size, or simply multiply by 100. Because the population is so much larger, many more people are added.
The second type. A Type II survivorship curve can be found in many bird species. Organisms die more or less evenly at each age interval in a Type II curve. Organisms with this type of survivorship curve may also have a small number of offspring and require a lot of parental care.
A habitat is the broad location in which an organism lives, whereas a niche is the set of physical and biological conditions in which a species lives, as well as the means by which the species obtains what it requires to survive and reproduce.
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How do postzygotic isolating mechanisms prevent successful interspecies hybridization?
Answers
The postzygotic isolating mechanisms prevent successful interspecies hybridization because although fertilization may be considered as successful, the resulting hybrid offspring is unable to develop or reproduce.
What are postzygotic isolating mechanisms?The postzygotic isolating mechanisms are different evolutionary mechanisms that prevent the emergence of hybrid species by acting after fertilization and therefore they act on the offspring to avoid further reproduction of these individuals.
In conclusion, the postzygotic isolating mechanisms prevent successful interspecies hybridization because although fertilization may be considered as successful, the resulting hybrid offspring is unable to develop or reproduce.
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Please help me with this question.
Answers
which of these is an abiotic factor that influences the piedmont plateau in north carolina?
A: Human interactions
B: Rolling hills
C: Forest Animals
D: Tall trees
Answers
The North Carolina piedmont plateau is influenced by rolling hills, an abiotic effect.
Which of these effects and is an abiotic factor?The right response is (a) living quarters. Abiotic variables are physical elements devoid of life yet that have an impact on the types and distributions of living things in a region. Abiotic factors are one of the options available in the living spaces.
What are the four abiotic components of grasslands?Climate, parent material and soil, geography, and natural disturbances are the four main abiotic components. The most significant abiotic element of a grassland ecosystem is the climate, which includes local conditions for temperature, rainfall, and wind.
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Services often depend on the people who provide them. As a result, their quality varies with each person's capabilities and day-to-day job performance. This element of services is referred to as ________
Answers
The element of services that varies with each person's capabilities and day-to-day job performance is known as inconsistency.
Inconsistency in service quality arises due to the fact that services are delivered by human resources who may have varying levels of expertise, skills, and commitment. This results in fluctuations in the service quality experienced by customers. To reduce inconsistency, organizations often implement training programs, standard operating procedures, and performance evaluations to maintain a consistent level of service quality across all employees. Additionally, they may leverage technology to automate certain tasks, ensuring a more uniform experience for customers. Overall, managing inconsistency is crucial for maintaining customer satisfaction and promoting a positive brand image.
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A tumor in a male patient is preventing the anterior pituitary from secreting LH. What effect will this have on his sperm production
Answers
Answer:
He will have a decreased amount of testosterone and in turn a reduction in sperm production.
What causes the air to move in the opposite directions at 16.3 km compared to the surface winds?
Answers
Which statement about ionic bonds is correct? A. Ionic bonds form when similarly charged ions are attracted to each other B. Ionic bonds form when electrons are shared C. Ionic bonds form when oppositely charged ions are attracted to each other D. Ionic bonds form when a protons are shared between atoms.
Answers
Answer:
Option C. Ionic bonds form when oppositely charged ions are attracted to each other
Explanation:
An ionic bond is a bond that forms when two oppositely charged ions are electrostatically attracted to one other, where metal is an anion and nonmetal is a cation.
For instance, the bond between NaCl is an ionic bond where sodium is metal and anion (Na⁺) and chlorine is nonmetal and cation (Cl⁻) and makes salt.
Thus, the correct answer is - option C.
Answer:
the answer is C
Explanation:
im late sorry