How do I revise efficiently?
I have a biology test and I want to get a good grade so I am currently trying to learn how to revise. I have 0 experience in revising since I usually have good grades in tests and all but I don't feel confident with biology...
Answers
Answer:
Try to stay focused and make sure any distractions you have around are put away. This will help you focus!
Explanation:
Try chewing on a piece of gum while revising and chew the same flavor of gum when you take the exam this will help you remember everything you studied.
Also, don't forget to say "Rabbi Zidni ilma"
Related Questions
structures in organisms that used oxygen well were
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Organisms possess specialized structures for efficient oxygen utilization. Gills in aquatic organisms, lungs in terrestrial vertebrates, and tracheal systems in insects enable oxygen exchange. Birds have lungs and air sacs for efficient respiration. Hemoglobin in red blood cells transports oxygen. These adaptations optimize oxygen utilization for survival.
Structures in organisms that are well-adapted for efficient oxygen utilization include:
Gills: Gills are respiratory organs found in aquatic organisms such as fish. They have a large surface area and are composed of thin filaments or plates with numerous blood vessels. Gills allow for efficient extraction of oxygen from water by facilitating the exchange of gases.Lungs: Lungs are respiratory organs found in terrestrial vertebrates, including mammals, birds, and reptiles. Lungs consist of a complex network of bronchial tubes and millions of tiny air sacs called alveoli. The large surface area and the thin walls of the alveoli facilitate the exchange of oxygen and carbon dioxide between the air and the bloodstream.Tracheal System: Insects have a network of tubes called tracheae that deliver oxygen directly to cells. The tracheal system enables efficient oxygen transport throughout the body, allowing insects to have a high metabolic rate and perform activities such as flying.Spiracles: Spiracles are small openings found on the surface of some insects. They allow for the exchange of gases between the external environment and the tracheal system. By opening and closing the spiracles, insects can control the flow of air and regulate oxygen uptake.Lungs and Air Sacs (in birds): Birds have a unique respiratory system that includes both lungs and air sacs. Air sacs act as bellows, ensuring a unidirectional flow of air through the lungs, allowing for efficient oxygen uptake and carbon dioxide removal. This adaptation is particularly important for the high metabolic demands of flying.Hemoglobin: Hemoglobin is a protein found in red blood cells that binds to oxygen molecules. Its structure enables efficient oxygen transport in the bloodstream, ensuring oxygen is effectively delivered to tissues throughout the body.These structures and adaptations are examples of how organisms have evolved to maximize their oxygen utilization, allowing them to thrive in their respective environments.
Cortisol is a steroid hormone that is produced by the adrenal glands. Cortisol is involved in triggering
the fight or flight response if the body is in danger.
Which of the following statements is TRUE?
Cortisol is involved in homeostasis.
Cortisol binds to receptors on the plasma membrane.
Cortisol is a nonsteroid hormone.
Cortisol is secreted to improve digestion.
Cortisol is secreted by the brain.
Cortisol enters target cells and initiates protein synthesis.
Answers
The statement that is true regarding cortisol is it is involved in homeostasis, Therefore, the correct option is A.
What is cortisol?Cortisol is a steroid hormone that is involved in regulating various metabolic processes in the body, including the metabolism of carbohydrates, proteins, and fats.
It is also involved in regulating the immune system and inflammatory response, as well as maintaining blood pressure and fluid balance. Therefore, cortisol plays an important role in maintaining homeostasis in the body. Therefore, the correct option is A.
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Which term describes a single female arctic The group of polar bears that live along the eastern coast of Russia makes upfox?
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The term that describes a single female arctic fox is a vixen.
A vixen is a female fox, including the arctic fox, that is not pregnant or nursing young. It belongs to the Canidae family and is found in the tundra and other Arctic regions of the Northern Hemisphere.The Arctic fox is a small, compact, and sturdy mammal that can survive in some of the world's harshest environments.
The population of Arctic foxes that lives along the eastern coast of Russia is not referred to as a group of polar bears. It is known as a population, a community, or a family.A population is a group of animals of the same species that live in the same area and interact with one another.
A family of arctic foxes is made up of a male and female adult and their offspring. They live together in underground dens that are used for shelter and protection.Arctic foxes are considered a keystone species in the Arctic region because they play a crucial role in the ecosystem. They feed on small animals like lemmings and voles, which helps to regulate their populations. In addition, they are a food source for larger predators like wolves and polar bears, which helps to maintain balance in the food web.
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what is the largest part of the brain
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Answer:
cerebrum is the answer I got
Answer:
Below;
Explanation:
Cerebrum
The largest part of the brain, the cerebrum initiates and coordinates movement and regulates temperature.
Hope it helps...
It's Ms-Muska
please help me this is the last question for my hw :D
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In the arm the distal segment has a higher density than the proximal segment. T/F
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False. The density of the arm is typically higher in the proximal segment (closer to shoulder) and decreases as it moves towards the distal segment (closer to the hand).
This is because the muscles in the proximal segment are generally larger and more complex, requiring more blood vessels and nerve fibers. Additionally, the bones in the proximal segment are thicker and denser to provide more support and stability for the upper arm. In contrast, the distal segment contains smaller muscles and bones, which require less support and have lower densities. Therefore, it is more accurate to say that the proximal segment has a higher density than the distal segment in the arm.
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How HIV affect the immune system?
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Answer:
HIV weakens a person's immune system, making it more and more difficult to fight disease. This effect is called AIDS (Acquired Immune Deficiency Syndrome).
Answer: HIV attacks a cell in the body know as the T cell or CD4 helper cell. When HIV destroys the T cell it makes the body harder to fight off infections making minor infections stronger/severe than ordinary.
Explanation:
A pet store has 4 bearded dragons and 9 geckos. What is the ratio of geckos to total reptiles?
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Answer:9:13
Explanation:the total is 13 and there are 9 geckos
A pet store has 4 bearded dragons and 9 geckos. The ratio of geckos to total reptiles is - 9:13
What is ratio?The ratio is the number that may be used to represent one quantity as a percentage of another, to put it simply. A ratio's two numbers can only be compared if they share the same unit. To compare two objects, we utilise ratios. If a bowl of fruit contains five oranges and six lemons, for instance, the proportion of oranges to lemons is five to six. The proportions of oranges to the overall amount of fruit are 5:11 for oranges and 6:5 for lemons.
therefore, the total is 13 and there are 9 geckos.
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an artery with a relatively thick tunica media and a total diameter between 0.1 cm and 1 cm is most likely to be which type?
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An artery with a relatively thick tunica media and a total diameter between 0.1 cm and 1 cm is most likely to be muscular artery.
Any blood channel that, with one exception, transports oxygenated blood and nutrients from the heart to the body's tissues is referred to as an artery in human physiology. The pulmonary artery is an exception, transporting oxygen-depleted blood to the lungs for oxygenation and carbon dioxide elimination (see pulmonary circulation).
Arteries are strong, elastic tubes that carry blood while being subjected to the heart's intense pumping pressure. The pulse is the alternate expansion and contraction of the arterial wall caused by the beating heart pushing blood into the arterial system through the aorta. It may be felt over an artery that is close to the skin's surface. The aorta produces large arteries that branch off and produce smaller arteries one after another until the level of the tiniest arteries, or arterioles, is reached.
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which of the following organisms are able to take energy from the sun and make it usable for living things?
A. consumers
B. decomposers
C. omnivores
D. producers
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Could someone help me with these two questions?
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Answer:
Balanced equation hope this help you
If a cell displays a great amount of activity, one possible reason for this could be that it has large quantities of
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Answer:
mitochondria
Explanation:
In cells where there is a high energy demand large numbers of mitochondria are found. The tail of a sperm contains many mitochondria and they run in a spiral like form along the length of the tail. In heart muscle cells about 40% of the cytoplasmic space is taken up by mitochondria.
Can someone answer this please hurry!!!! 85 points for the entire data table (correct answers)
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Tables, relationships, and constraints are all included in a data set. The tables of a Data Set are represented in ADO.NET by Data Table objects.
What is Data Tables?The data table is arguably the most fundamental component of business intelligence. In its most basic form, a table is made up of a set of intersecting columns and rows, together with a header row that lists the titles of the columns to help the user comprehend the table's content.The in-memory feature is present in one or more dataset tables that make up the data set. A database table with an in-memory feature is stored in a data table as a single or unit. Data tables come together to form a data set. For easier access to the data, a data table has several rows and columns.The distinction between a dataset and a data table is minimal; a dataset is essentially a collection of data tables.To learn more about data refer to:
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Which of the following best describes how species are defined under the General Lineage Concept?
A. An interbreeding population that is reproductively isolated from other populations
B. Groups of organisms that look the same, but live in different ranges
C. Independently evolving lineages
D. The product of genetic drift
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The best description of how species are defined under the General Lineage Concept is that they are independently evolving lineages. This concept focuses on the evolutionary history of organisms and recognizes that species can evolve and diverge even if they do not interbreed.
The General Lineage Concept is a way of defining species based on independently evolving lineages. According to this concept, species are groups of organisms that have a common ancestor and share a lineage that has been evolving separately from other lineages.
Option C, "Independently evolving lineages," best describes how species are defined under the General Lineage Concept. This means that a species is a distinct evolutionary lineage that has its own unique characteristics and traits.
Unlike option A, which mentions interbreeding populations, the General Lineage Concept focuses on the evolutionary history of organisms rather than their ability to reproduce with each other. It recognizes that species can evolve and diverge even if they do not interbreed.
Option B, which mentions groups of organisms that look the same but live in different ranges, is not accurate according to the General Lineage Concept. Species can look different from each other and still belong to the same lineage, or they can look similar but belong to different lineages.
Option D, which mentions genetic drift, is not specific to the General Lineage Concept. Genetic drift is a random process that can affect the genetic makeup of populations, but it is not the sole factor in defining species under this concept.
In summary, the best description of how species are defined under the General Lineage Concept is that they are independently evolving lineages. This concept focuses on the evolutionary history of organisms and recognizes that species can evolve and diverge even if they do not interbreed.
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What is one way in which scientists get information about the evolutionary history of species?
A. by comparing organisms' body structures
B. by observing where organisms live
C. by observing what organisms eat
D. by studying how organisms move
Answers
Ferns, such as the one in the picture, can be found today. They are usually found
growing in warmer climates. However, fossils of ferns have been found in places with
cold climates where it often snows today. What can we conclude about the places
where the fossils of ferns have been found?
A. Ferns used to live in cold climates.
B. These places once had a warmer climate.
C. Someone tried to grow ferns in cold climates.
D. These places once had a colder climate.
Answers
Answer:
B. These places once had a warmer climate.
Explanation:
They're fossils meaning they're extremely old therefore the climate they once grew in was suitable for its needs until the climate changed causing them to die.
Interactions between organisms and their environment impact the organism’s overall population. The jaguar Panthera onca is the largest cat in North America. It is found in areas across the Southwest, including Arizona, New Mexico, and Texas. It is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, and many smaller mammals. Which shows the relationship between the jaguar and turtles?
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Answer:
The correct answer is - predator-prey
Explanation:
The relationship between predator and prey is the interaction between predator and prey. A predator is is an organism that lives on hunting down other organisms for their nutrition and energy while the prey is an organism that is getting killed or hunted down by a predator. The population of prey is controlled by predators.
Here, the jaguar depends for their nutrition and energy on turtle and other organisms, therefore, jaguar hunt the turtles for their food which makes this a predator-prey relationship.
Answer:
D. predator-prey relationship
Explanation:
where blood exits the heart
Answers
Answer: the pulmonic valve
Explanation:
Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. Blood leaves the heart through the aortic valve, into the aorta and to the body. This pattern is repeated, causing blood to flow continuously to the heart, lungs and body.
which of the following statements correctly describe the straight-line plot obtained from concentration and time data for the first-order reaction a → products? select all that apply.
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In the context of a first-order reaction, the following statements correctly describe the straight-line plot obtained from concentration and time data: A) The plot will have a negative slope. C) The plot will pass through the origin (0, 0). D) The plot will have a constant slope. So the options A, C, D are correct.
For a first-order reaction, the rate of the reaction is directly proportional to the concentration of the reactant. As time progresses, the concentration of the reactant decreases exponentially. This exponential decay results in a straight-line plot when the natural logarithm of the concentration is plotted against time. The negative slope of the plot represents the rate constant of the reaction, which remains constant throughout the reaction. The plot passes through the origin (0, 0) since at the start of the reaction, when time is zero, the concentration of the reactant is also zero. Therefore the options A, C, D are correct.
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--The complete Question is, Which of the following statements correctly describe the straight-line plot obtained from concentration and time data for the first-order reaction "a → products"? Select all that apply:
A) The plot will have a positive slope.
B) The plot will have a negative slope.
C) The plot will pass through the origin (0, 0).
D) The plot will have a constant slope.
E) The plot will have a variable slope.
Select all the statements that apply.--
Now choose one of the resources used for energy production that you have studied in this lesson. Describe how the way humans use or obtain this resource might impact the natural resource you described in part A. If you don't think the natural resource in part A is affected, explain why.
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In general, the way humans use or obtain any resource can have a significant impact on the natural resources.
For example, if the resource is fossil fuels such as coal, oil, and natural gas, the extraction and burning of these resources can lead to pollution of air, water, and soil. It also contributes to climate change and global warming, which can have severe impacts on various natural resources such as oceans, forests, and wildlife.
What is the energy production about?Mining and drilling for fossil fuels can also lead to habitat destruction and fragmentation, which can negatively impact wildlife populations and biodiversity.
The production and transportation of these resources can also lead to spills and leaks, which can harm aquatic wildlife and their habitats.
In conclusion, the way humans use or obtain resources can have a significant impact on the natural resources, and it's important to consider the environmental impact of different energy production methods in order to make more sustainable choices.
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What characteristic of living bacteria makes them easier to see with a darkfield condenser than with a regular brightfield condenser?
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In a darkfield microscope, living bacteria are easier to see than in a regular brightfield microscope. The reason behind this is that a brightfield microscope illuminates the sample from below, whereas a darkfield microscope illuminates the sample from the sides.
This allows living bacteria to be seen with greater clarity. A darkfield microscope is a microscope that is used to view specimens in a darkfield setting. A darkfield microscope is used to view transparent specimens, such as bacteria, that are difficult to see with a regular brightfield microscope. Darkfield microscopy can also be used to observe living microorganisms.
A brightfield microscope is the most common type of microscope used in biology labs. A brightfield microscope illuminates the sample from below, and the sample is viewed through the objective lens. The brightfield microscope is the simplest and most basic type of microscope. Brightfield microscopy can be used to view a variety of specimens, including cells, tissues, and microorganisms.
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why are bacteria the focus of study in disease microbiology
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Bacteria are the focus of study in disease microbiology because they are responsible for causing a wide range of infectious diseases in humans and other organisms.
Bacteria play a significant role in disease microbiology due to their ability to cause various infections and diseases. Understanding the characteristics, behavior, and mechanisms of bacterial pathogens is crucial for diagnosing, treating, and preventing infectious diseases.
Bacterial infections can affect different body systems and lead to illnesses such as pneumonia, urinary tract infections, meningitis, tuberculosis, and foodborne illnesses, among others. Bacterial pathogens can invade and colonize host tissues, produce toxins, trigger immune responses, and cause damage to cells and tissues.
Studying bacteria involved in disease helps researchers and healthcare professionals identify specific bacterial species or strains responsible for infections, determine their virulence factors, study their modes of transmission, and develop effective diagnostic tools, treatments, and preventive measures. This knowledge is vital for developing antibiotics, vaccines, and infection control strategies.
Additionally, bacteria have the potential to develop antibiotic resistance, which poses a significant global health concern. Investigating bacterial pathogens and their resistance mechanisms is crucial for combating antibiotic-resistant bacteria and developing new antimicrobial strategies.
Therefore, the focus on studying bacteria in disease microbiology is essential for understanding the causes, mechanisms, and control of infectious diseases caused by bacterial pathogens.
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help me please
Read the paragraph from the section "Biological Oceanography."
Biological oceanographers study how each of the sub-disciplines of oceanography work to influence the distribution and abundance of marine plants and animals. They also research how marine organisms behave and develop in relation to their environment. Marine biologists and scientists who work in fisheries are examples of biological oceanographers.
Which two words could BEST replace "distribution" and "abundance" in this paragraph?
A
placement; wealth
B
division; bundles
C
sequence; health
D
location; quantities
Answers
Placement and Wealth best replaces "distribution" and "abundance" in the paragraph "Biological oceanographers study how each of the sub-disciplines of oceanography work to influence the distribution and abundance of marine plants and animals." The answer is option A
What are the synonyms for abundance and distribution?There are exhaustive lists for synonyms of abundance which includes:
wealth, volume, mass, heap, chunk, loads, mountain, plenty quantity, richness etc. according to Miriam WebsterWith distribution, there are words like:
dissemination, scattering, placement, position, grouping, spread, location, arrangement, disposition, allotment etc.For the paragraph from "Biological Oceanography" the best option that replaces the words "distribution" and "abundance" and retains the meaning of the sentence are "Placement and wealth".
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If you could be any invertebrate animal in the world what would it be? And then give several reason why?
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Invertebrates hence contribute to soil quality creation and maintenance in addition to aiding in the pollination of food crops. In agricultural contexts, as well as in gardens and allotments, this is crucial for growing food crops.
What function do invertebrate animals serve?The vast majority of species on Earth are invertebrates, which have an enormous variety and many of them have not yet been fully characterized. In addition to providing several environmental services, such as pollination, decomposition, and nutrient release, they are essential parts of food webs.
If invertebrates vanished, what would happen?Additionally, insects help recirculate nutrients into the soil by decomposing plant material. The majority of bird and amphibian species would become extinct in two months without any insects.
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Day 1 Values and beliefs
What is the difference between a value and a belief?
Answers
Belief: something you know it is true and have trust that it is true
in your own words, explain how the probabilities of genotypes and phenotypes are determined using a pedigree. use the terms heterozygous, homozygous, dominant, recessive, and trait carrier.
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Probabilities of genotypes and phenotypes can be determined based on the patterns of inheritance seen in the pedigree, such as the presence or absence of the trait in family members and their known genotypes.
A pedigree shows the inheritance pattern of a trait within a family.
Heterozygous individuals have one dominant and one recessive allele, while homozygous individuals have two of the same alleles.
Dominant traits are expressed in both heterozygous and homozygous individuals, while recessive traits are only expressed in homozygous individuals.
Trait carriers are heterozygous individuals who carry the recessive allele without expressing the trait.
What is genotype?Genotypes refer to the genetic makeup of an individual, specifically the combination of alleles they possess for a particular gene or set of genes.
They are represented by the letters or symbols representing the alleles, Like "AA" for a homozygous dominant genotype, "aa" for a homozygous recessive genotype, or "Aa" for a heterozygous genotype.
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which muscle is used when giving your grandmother a kiss on the cheek?
Answers
Sternocleidomastoid
Explanation:
If 70% of the alleles in a gene pool of a population are dominant, the frequency of the
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Answer:
Explanation:
The number of copies of an allele in a population divided by the total number of all alleles for that gene in a population is the allele frequency. For a gene with two alleles whose frequencies are p and q, the Hardy-Weinberg equation states that the genotypes that are possible for the population are p^2 + 2pq + q^2, which is equal to
all of the following genera are considered resident microbiota of skin sites, except
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All of the following genera are considered resident microbiota of skin sites, except one.
The skin is inhabited by a diverse community of microorganisms, collectively known as the skin microbiota. These microorganisms play a role in maintaining skin health and protecting against potential pathogens. However, not all genera are considered resident microbiota of skin sites.
The resident microbiota of the skin include genera such as Staphylococcus, Streptococcus, Corynebacterium, and Propionibacterium. These bacteria commonly reside on the skin and are part of the normal skin microbiota. They contribute to the skin's ecosystem and have various functions, including metabolizing skin lipids and competing with potential harmful bacteria.
On the other hand, there are genera that are not considered resident microbiota of skin sites. Examples of such genera include Escherichia, Salmonella, and Pseudomonas. While these genera may be present on the skin under certain circumstances, they are not typically part of the resident microbiota. They are more commonly associated with gastrointestinal or other infections rather than being commonly found on the skin.
It's important to note that the composition of the skin microbiota can vary among individuals and can be influenced by factors such as hygiene practices, environmental conditions, and immune system health.
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I have a question about this video my teacher sent me, how do I find the variable in this?
https://www.you tube.com/watch?v=hAq443fhyDo&ab_channel=VictorNielsen
also remove the space^
Answers
answer:you got rick rolled