A population of mice has moved in a new area where the rocks are very dark. Due to natural genetic variation, some of the mice are black while others are tan. The bird is a predator of the mice. Predict what will happen after a few generations and explain why. Be sure to include the following words in your response: adaptation, survive, reproduce.
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Final answer:
Black mice that are better camouflaged against the dark rocks have a higher chance of surviving and reproducing, leading to an increase in their frequency in the population.
Explanation:
Natural selection is the process by which individuals with advantageous traits in a particular environment are more likely to survive and reproduce. In the case of the hypothetical population of mice in a new area with dark rocks, the mice that are better camouflaged, such as those that are black, would have a higher chance of surviving and reproducing. Over time, this would result in an increase in the frequency of black mice in the population.
This adaptation to the dark environment provides black mice with a better chance of avoiding predators, like birds, as they are harder to spot against the dark rocks. Therefore, as the generations pass, the proportion of black mice in the population is expected to increase, while the proportion of tan mice may decrease.
Related Questions
What lipid can surround fat droplets and keep them stably suspended in water so that the water and fat do not separate?
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Which shotgun choke is best for hunting a large, slow bird, such as a t?
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The graph gives information on greenhouse gas (ghg) emissions from US industries. Which year had the lowest ghg emissions from industrial activity?
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Answer:
The correct answer is 2009
The green house gas emission decreased in year 2009 as a result of recession of industries. Green house gas emission declined in the year 2008-2009 because of the industrial and transportation sector.
According to the report of Environmental Protection Agency the average percentage of greenhouse gas emission in UnitedStates lowered by 6%.
Answer: E
Explanation:
Earth is tilted 23.5° on its rotational axis. This tilt affects the amount of direct sunlight received by Earth’s hemispheres throughout the year. During summer in the Northern Hemisphere, which of the following descriptions correctly identifies the amount of sunlight received in the Arctic (the northernmost part of Earth)?
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d. Due to the Earth's 23.5° tilt on its axis, the Arctic Circle experiences 24 hours of daylight during summer in the Northern Hemisphere. Therefore, the correct answer is 'constant sunlight'.
The correct answer is constant sunlight. Due to the tilt of the Earth's axis during the Northern Hemisphere's summer, the North Pole is tilted towards the Sun. This results in the Arctic Circle experiencing 24 hours of daylight, known as the 'polar day,' during the summer solstice around June 21. This phenomenon is because the Arctic Circle falls within the area that remains in continuous sunlight during this time, making option d, constant sunlight, the correct one.
The complete question is : earth is tilted 23.5° on its rotational axis. this tilt affects the amount of direct sunlight received by earth’s hemispheres throughout the year. during summer in the northern hemisphere, which of the following descriptions correctly identifies the amount of sunlight received in the arctic (the northernmost part of earth)? a. no sunlight b. 12 hours of sunlight per day c. sunlight at a 0-degree angle of incidence d. constant sunlight
A nurse is measuring the blood pressure of toddlers during a community health camp. what blood pressure finding is the nurse most often to find in the toddlers?
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In toddlers the nurse will find that 80-106 which is systolic and 40 to 65 which diastolic.
In toddlers taking blood pressure is a bit complicated as compared to adults. For example, in boys their blood pressure will be higher as compared to girls. The sex and age of the child will be also a determining factor for blood pressure .
When a person has high blood pressure, the arteries and heart they have a lot of work to do because they have to strain hard so as to carry blood.
High blood pressure in toddlers can be caused by prematurity or if a toddler has a problem with the kidney.
Help pleaseeeee on 7
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The client who is pregnant for the first time asks the nurse about the changes in her body. while describing the changes in each body system, the nurse mentions that the system that undergoes the most profound change of all during pregnancy is the what
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2. The human body has natural steroids, a type of lipid. What is the function of steroids in the human body?
They store extra energy in the body.
They build cell membranes.
They carry chemical messages throughout the body.
They prevent water loss from the body.,
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The more root hairs a plant has, the more water and nutrients it can absorb.which is an appropriate justification of this statement
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Explanation:
The more surface area, the larger amount of soil it has direct access to and the more it can absorb from said soil. This also help a plant identify areas more beneficial to the plant via richer nutrients and more water and it can then grow in that direction
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A client is discharged to his daughter's home. he weighs 250 lb (113.4 kg) and is immobile. the nurse should instruct the daughter on the use of a:
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In this case, the patient needs to be transferred using a bariatric lift, which is a specific type of hydraulic lift. A bariatric lift is specifically used to transfer bariatric patients, meaning patients who suffer from extreme obesity. The rest of the available lifts would not be suitable for this type of patient.
Answer:
Lifts such as Bariatric Lift
Explanation:
When a patient has weight more than average weight as per the height and body mass rule, then a patient requires help in lifting himself/herself while doing daily chorus activities.
In this case client has a great weight i.e 250 lb (113.4 kg), thus her daugther would not be able to support her father all alone. Thus, nurse would have suggested her to use Bariatric Lift Equipment. This equipment is used to lift heavy weighted patients while transferring from bed to wheel chair or vice versa.
Determine the power of 600 joules of work done in 4 seconds. Use the formula power=work/time (Remember power is measured in watts).
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power = 600 joules / 4 seconds
600/4 = 150
power = 150 watts
150 walts
600 divided by 4J=150
What types of features would be visible if the oceans were drained?
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Which food contains the material needed to build muscle, but does not contain the macromolecules that give quick energy?
A.Hamburger B.Potatoes C.Bread D.Broccoli
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Potatoes do not have simple carbohydrates that give quick energy (potatoes are rich in starch which are complex carbohydrates) but potatoes do not also have enough protein needed to build muscles. Bread is rich in simple carbohydrates but are not rich in protein. Broccoli, on the other hand, is a calorie-poor food but contains more than adequate vitamins and other important micronutrients.
Triglycerides contain more metabolic energy per unit weight than glycogen because:
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1 Glycogen has polarity is more than that of fatty acids
2. fatty acids are commonly in anhydrous form
3.fatty acid are less oxidized than the carbohydrate
Triglyceride contain double energy to that of carbohydrate or that of energy that can be supplied in the body.
Answer:
Triglycerides contain more metabolic energy per unit weight than glycogen because it is water-insoluble. Triglycerides (fats and oils) are important dietary sources of energy and they can be stored in larger quantities than carbohydrates. Fat also functions as a major form of energy storage (9 Cal/g).
Carbohydrate reserves are depleted after about 1 day without food, but stored fat can provide needed calories for 30-40 days
Explanation:
Carbohydrates from dietary sources and glycogen catabolism are used preferentially for energy production by some tissues, such as the brain and active skeletal muscles.
Body stores of glycogen are depleted after only a
few hours of fasting, which requires fatty acids
stored in triglycerides to be used as energy sources.
Even if glycogen supplies are adequate, resting muscle and liver cells use energy from triglycerides because this conserves glycogen stores and glucose for use by brain cells and red blood cells.
how can knowledge of the human genome be useful for in vitro fertilization techniques
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"the term normally applied when two genes fail to assort independently is ________."
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Independent assortment refers to the allele segregation of two different genes. They are expected to be segregated from each other independently.This is not seen in monohybrids, they are usually heterozygous for an allelic pair only. Link genes cannot assort independently. These are inherited together during meiosis phase of sexual reproduction. Usually genes that are close together will tend to stick together resulting into inheritance of genes as pairs.
Olfactory receptors send axons through the cribriform plate. they synapse on neurons in the
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Olfactory mucosa also known as the olfactory epithelium has olfactory receptors that are responsible for scent transduction. The olfactory molecules reach olfactory receptors via passive pathway. Molecules will bind in the olfactory binding protein these transport it to the olfactory receptors. These will acitivate the sensory neurons and will transport the signal to the neurons in the olfactory bulb. Information will conducted by the olfactory bulb via lateral olfactory tract to the brain.
Arctic foxes have blue-gray fur in summer and change to white fur in winter. what would be one way to test whether this change is influenced by cooling seasonal temperatures?
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The pcr (polymerase chain reaction) protocol that is currently used in laboratories was facilitated by the discovery of a bacterium called thermus aquaticus in a hot spring inside yellowstone national park, wyoming. this organism contains a heat-stable form of dna polymerase known as taq polymerase, which continues to function even after it has been heated to 95 degrees
c. why would such a heat-stable polymerase be beneficial in pcr?
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This process must be repeated many times. Thus, it is good that taq polymerase can withstand such temperature changes, especially to 95°C and above, so that it is not necessary for scientists to continually replace the denatured polymerase after every round of PCR if the polymerase is not heat-stable.
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Venous return to the heart is increased during expiration.
a. True
b. False
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Protists are a diverse group of organisms that are similar in
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A) rRNA sequences
B) Metabolic type
C) Motility
D) Ecology
E) None of the above
The answer would be E none of the above.
Protists are eukaryotes, such that their cells have a nucleus membrane and other membrane-bound organelles. Most of them are single-celled. They differ in all other features, they are neither plants, nor fungi, nor animals.
Final answer:
Protists are a diverse group of eukaryotic organisms encompassing a wide range of biological and ecological traits, from their cell structures to habitats. Despite their diversity, a common feature is their eukaryotic cell type, distinguishing them as neither animal, plant, nor fungus. This group includes both single-celled and multicellular organisms, displaying significant diversity in reproduction, nutrition, and motility.
Explanation:
Protists are an incredibly diverse group of organisms that are similar primarily because they are all eukaryotic. This means that protists have cells with a nucleus. However, beyond this basic characteristic, protists exhibit a wide range of biological and ecological traits due to their classification as an artificial assemblage of phylogenetically unrelated groups.
Protists can vary significantly in their cell structures, types of reproduction, nutrition methods, and habitats they occupy.Protists include both single-celled organisms, such as amoebas, and multicellular organisms, like seaweeds. Despite their diverse forms, most single-celled protists are motile, leveraging various structures for transportation. The term 'protist' serves as a catchall for eukaryotic organisms not fitting into animal, plant, or fungal kingdoms, encompassing species from microscopic algae to the parasite Plasmodium, which causes malaria.
The enormous diversity of protists is reflected in their ecological roles and lifestyles, ranging from symbiotic partners living in other organisms to independent entities in various ecosystems. Interestingly, with over 100,000 described species, the scope of protist diversity aligns with the diversity of potential hosts, suggesting an even greater range of unidentified species.
Protists foreshadow characteristics seen in plants and animals, demonstrating evolutionary complexity both as unicellular and multicellular organisms, some displaying forms of rudimentary multicellularity or existing as complex, multinucleate entities.
A series of events occurring in the mitochondria leads to the synthesis of which energy molecule
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The inner mitochondrial membrane transduces energy through oxidative phosphorylation or the electron transport chain, which is responsible for the production of energy in the form of ATP or adenosine triphosphate molecule.
The electron transport chain is the conversion of oxygen to water. It comprises an enzymatic series of electron donor and acceptors where each electron donor passes an electron to an acceptor and in turn, donates these electrons to another acceptor, a process that continues down the series. After this, cellular respiration occurs, a biochemical pathway by which the cells releases energy for the essential processes of life.
how did collision during the formation of the planets affect earth mercury venus and uranus
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Collisions during the formation of the planets played a crucial role in shaping their sizes, compositions, and physical characteristics.
What are the collisions during formation of the planets?The collisions during the formation of the planets, including Earth, Mercury, Venus, and Uranus, had several significant effects on their development:
1. Accretion: Collisions between smaller celestial bodies led to the accretion of these objects, forming larger bodies that eventually became the planets we know today.
2. Planetary differentiation: The energy from these collisions caused the temperature of the growing planets to rise, allowing for the process of planetary differentiation to occur. This process separates the planet's material into layers based on density, resulting in the formation of a core, mantle, and crust.
3. Formation of the Moon: Earth's collision with a Mars-sized body, known as Theia, resulted in the creation of debris that eventually coalesced to form the Moon.
4. Tilted axis: The collisions impacted the rotational axes of the planets, causing them to tilt. Uranus, for example, has a unique tilt with its axis nearly parallel to its orbital plane.
5. Atmospheric development: Collisions with other celestial bodies helped deliver volatile elements such as water, nitrogen, and carbon dioxide to the planets, contributing to the development of their atmospheres.
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Doctors have had luck transplanting hearts and lungs. But science has not been very successful in growing hearts and lungs. Why? A) They contain nerves and scientists cannot grow nerve cells. B) They are complex organs made of many types of cells and tissues. C) Even if researchers build a heart or lung, there is no guarantee that a person's body will accept it. D) Human hearts and lungs are not like any other animal organs so there is not source for cells and tissues.
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Man cannot scientifically recreate a heart or lung in a lab. It just doesn’t work that way. Therefore, your answer is B.
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Ans. (B). They are complex organs made of many types of cells and tissues.
Organ culture involves development of tissues or organs, in vitro (outside the body), to restore, maintain, or improve damaged organs or tissues. Many organs and tissues are successfully grown by engineered tissues, such as skin and cartilage.
However, heart, lungs, and other complex organs have not been very successfully grown as these organs are made up of different types of tissues and cells. For examples, heart is made up of cardiac muscle tissue, skeletal tissues, and smooth muscle tissue.
It is quite tough to assemble different types of cells and tissues to make organs fully functional or reproducible.
Thus, the correct answer is option (B).
The relationship between a zebra and the lion that eats it is an example of what kind of interaction? question 10 options:
a.competition
b.mutualism
c.consumer–resource
d.commensalism
e.none of the above
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but most probably it's C
The development of nuclear power had provided electricity for less money,but at a cost. What may be considered a cost of nuclear power?
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Fast glycolytic muscle fibers __________. fast glycolytic muscle fibers __________. have fewer,smaller myofilaments generate lots of power and depend on anaerobic pathways to make adenosine triphosphate (atp) are prevalent in postural muscles of the back are abundant in muscles of the lower limbs, contract quickly, and are oxygen-dependent have abundant myoglobin and numerous mitochondria
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Answer:
Generate lots of power and depend on anaerobic pathways to make adenosine triphosphate (ATP)
Explanation:
Fast glycolytic muscle fibers generate lots of power mainly through anaerobic glycolysis. They are thick muscle fibers that can produce bursts of energy for a short span of time, but they fatigue easily. Looking at it more closely, you will find that they do not have many mitochondria because they don't rely on aerobic pathways and they are sometimes described as white fibers because they have limited blood supply.
These types of muscles fibers are called fast twitch fibers because they can generate more force at a faster rate and allow quick movements. But then again, only for a short period before they start to fatigue.
EXAM TOMORROW! PLEASE HELP! The genotype of F1 individuals in a tetrahybrid cross is AaBbCcDd. Assuming independent assortment of these four genes, what are the probabilities that F2 offspring would have the following genotypes? Show your work.
(1)aabbccdd
(2) AaBbCcDd
(3) AABBCCDD
(4) AaBBccDd,
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1) aabbccdd = 1/4*1/4*1/4*1/4= 1/256
2) AaBbCcDd= 1/2*1/2*1/2*1/2= 1/16
3) AABBCCDD= 1/4*1/4*1/4*1/4= 1/256
4) AaBBccDd= 1/2*1/4*1/4*1/2= 1/64
You can use the Punnett square or the shortcut method. Either way, it is given that in any circumstance that the probability of a heterozygote (Aa) is 2/4 or simply 1/2 and the probability of a homozygote (AA) or (aa) is ¼.
a. aabbccdd = (¼)(¼)(¼)(¼) =1/256
b. AaBbCcDd = (1/2) (1/2) (1/2) (1/2) = 1/16
c. AABBCCDD = (¼)(¼)(¼)(¼) = 1/256
d. AaBBccDd =(1/2)(¼)(¼)(1/2) = 1/64
The _____ works with the Environmental Protection Agency to enforce marine biology regulations along the coast and in the Great Lakes channels.
A. Coast Guard
B. Department of Interior (DOI)
C. Center for Disease Control (CDC)
D. Food and Drug Administration (FDA)
I think it is A.
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The Coast Guard works with the Environmental Protection Agency to enforce marine biology regulations along the coast and in the Great Lakes channels.
Answer: Option A
Explanation:
The Environmental Protection Agency (EPA) takes initiative to instill certain regulations to maintain the Ocean and its resources with the help of coastal guards and NGO’s. The Ocean coast is polluted due to various avoidable and unavoidable pollutants like oil leakage, industries letting in their waste, ship wrecks etc.
President Richard Nixon was the one who created this EPA. The EPA takes utmost care by educating the people of the necessity to maintain the coast in a disciplined attitude so as to have a pollution free oceanic coast which would in turn not adhere into the relevant working stream. Avoiding litter is the main rule that has been imposed.
Answer:
The correct answer is option A. "Coast Guard".
Explanation:
The United States Coast Guard (USCG) is a branch of the United States Armed Forces dedicated to coastal defense. Marine environmental protection is one of the duties that USCG performs along the coast and in the Great Lakes channels. In order to have the best results in this duty, USCG works with the Environmental Protection Agency and assures environmental protection under five different areas: prevention, enforcement, surveillance, response and in-house abatement.
What dosage schedule is represented by the graph below? Drug dosage schedule A. One pill every hour. B. One pill every 3 hours. C. One pill every 5 hours. D. One pill every 7 hours. A patient takes the recommended dosage of painkiller pills, but does not feel any immediate effect. What should the patient do next? A. Continue to take pills until the pain goes away. B. Try a different brand of painkillers right away. C. Assume the bottle of pills is defective and take a pill from a different bottle. D. Wait for a while. The graph below shows the effect of taking a single dose of pill type "E." The maximum tolerance level for this drug is 7 mcg/cc and the minimum effective level is 2 mcg/cc. What is the best dosage schedule for this drug? Pill E drug level graph A. Take one pill every 2 hours. B. Take one pill every 4 hours. C. Take one pill every 6 hours. D. Take one pill every 12 hours. The graph below shows drug levels in the blood and in a target organ through time, while taking Pill Type C in the Gizmo. The dosage schedule is one pill every two hours. What will eventually happen if the patient continues to take the pill on the same dosage schedule? Drug level in blood and target organ A. The drug level in the target organ will continue to increase steadily until an overdose occurs. B. The drug level in the target organ will level off and reach equilibrium. C. After reaching a peak of 200 mcg/cc, the levels of drug in the target organ will decrease steadily back to 0 mcg/cc. D. The drug level in the target organ will fluctuate randomly. Suppose that a batch of controlled-release pills intended to be taken every 12 hours were accidentally manufactured without their thick coating. What would be most likely to happen to someone who took one of these pills? A. The medication would be absorbed too quickly. This could cause an overdose. B. The medication would be absorbed too slowly. This could cause the patient not to feel the drug's effects. C. The medication would still be absorbed as intended. D. The drug level in the blood would fluctuate wildly.\
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Understanding a drug's dosage schedule can help to ensure its effectiveness and prevent overdosage. Altering a drug's form, such as removing a pill's coating, can drastically alter how it's absorbed and could lead to an overdose. If a drug isn't immediately effective, patience should be exercised as the medication might take some time to take effect in the body.
Explanation:It seems like these questions are part of a test about interpreting data from drug dosage schedules and understanding the effect of altering these schedules. The answers would greatly depend on the unseen graphs, but general principles can still be discussed.
One should adhere to the recommended dosage schedule to ensure effectiveness and safety. If a painkiller isn't working immediately, it may take some time for the medication to take effect in the body; patience is necessary (option D).
Understanding the target graph for drug E might lead to a conclusion that the best option is every 4, 6 or 12 hours depending on when the drug concentration falls to the minimum effective level and rises to the maximum tolerance level.
Continuing to take pill type C every two hours might lead to overdose if the levels don't stabilize or decrease after reaching a peak, before taking the next dose.
A controlled-release pill without its coating would release the medicine too quickly which could cause an overdose (option A).
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