Answers
Answer:
16. Directional Selection
17. Disruptive Selection
18. Stabilizing Selection
19. Natural Selection
20. Adaptation
Explanation:
In population genetics, directional selection/positive selection is a mode of natural selection in which an extreme phenotype is favored over other phenotypes.
Disruptive Selection would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle.
Stabilizing Selection. Occurs when individuals at the extremes of the range of characteristic are selected against. This means that the "average" individuals are selected for.
Related Questions
The amount of gravitational force exerted on an object is its _______.
Answers
Answer:
mass
Explanation:
please mark this answer as brainliest
Answer: Hewo, there! your answer is below
Mass
Mass is a measure of how much matter an object contains.
Explanation:
Mass is a property that an object has no matter where it is located. Weight, on the other hand, depends on the force of gravity acting on that object.
Hope this helps you!!
Have a great day!!
Describe the role of DNA helicase, DNA polymerase and DNA ligase in DNA replication.
Answers
Answer:
a DNA helicase) has seperated two orginal strands of DNA, the polymerase moves along the template strand and polymerizes free nucleotides into a new antiparallel strand. ... DNA ligase joins pieces of DNA together, mainly joins Okazaki fragments with the main DNA piece.
High blood pressure is a common and dangerous condition affecting about 75 million people in the United States. It is known as the "silent killer" because many people don't know they have it. This contributes to the disease being the second leading cause of death of Americans.
Which of the following lifestyles would increase the risk of high blood pressure?
Group of answer choices:
Living a calm sedentary lifestyle on an island that is hit by an occasional hurricane.
Losing weight after childbirth.
Attending water aerobics class 4 times a year.
Eating meals that include fruits, vegetables and grains.
Answers
Answer:
losing weight after childbirth
Explanation:
This contributes to the disease being the second leading cause of death of Americans. Losing weight after childbirth.
What can high blood pressure cause?Factors that can lead to high blood pressure have: A diet high in salt, fat, and/or cholesterol.
Chronic diseases such as kidney and hormone problems, diabetes, and high cholesterol.
Family background, quite if your parents or other close relatives have high blood pressure.
Thus, option "A" is correct, Losing weight after childbirth.
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Which technique will researchers studying the inheritance patterns of various disorders most likely use? A. CLADOGRAM, B. DNA FINGERPRINTING, C. GEL ELECTROPHORESIS, D. CHROMOSOMAL ANALYSIS
Answers
Answer:
Chromosomal Analysis
Explanation:
Most of the options are pretty superficial but chromosomal analysis goes in depth therefore you'll get more results and find what could potentially be wrong.
of the following are abiotic factors in an ecosystem except _______.
Select one:
a.
types of minerals
b.
ocean currents
c.
types of bacteria
d.
temperature
Answers
Where are the instructions that control a cell's activities found?
A. DNA
B. mitochondria
C. ribosomes
Answers
Answer:
A. DNA
Explanation:
Nucleus. The nucleus, a substantial organelle that houses the cell's DNA, is referred to as the “command center” of the cell (deoxyribonucleic acid). Thus, option A is correct.
What is the main function of DNA?
The genetic information contained in the DNA is used by the nucleus to regulate all cellular functions, including growth and metabolism.
Today, DNA has three separate purposes: genetic, immunological, and structural, all of which differ greatly from one another and depend in different ways on the bases and the sugar phosphate backbone.
Genetic information is encoded in the nucleotide order along the backbone. Replication, information encoding, mutation/recombination, and gene expression are the four functions that DNA performs.
Therefore, DNA which is found in nucleus control a cellular activity.
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The question below is an incomplete sentence. Choose the word that best completes the sentence.
Antlered flies are tiny insects that live in the tropical forests New Guinea.
of
and
or
for
Answers
Answer:
of
Explanation:
makes grammatical sense
the diagram shows part of a human female reproductive system.
which structure is labeled 1 in the diagram? (i put the answer in the pic)
Answers
You are correct. It is the Fallopian Tube.
Answer:
D: fallopian tube is correct
When identifying the agent responsible for causing a disease, why is evaluation of colony morphology not enough?
Answers
Answer:
Some infectious diseases are distinctive enough to be identified clinically. ... Infections may be caused by bacteria, viruses, fungi, and parasites. ... Microbial Identification: Colony and cellular morphology may permit preliminary ... Diagnostic medical microbiology is the discipline that identifies etiologic agents of disease.
Explanation:
Microorganisms have antigens present on their surface, Antigen tests detect the presence of a microorganism directly so that doctors can diagnose an infection quickly, without waiting for a person to produce antibodies in response to the microorganism.
Evaluation of colony morphology is not enough as it is not a definitive test. colonies of different bacteria can look the same, so it can help narrow.
What is antigen tests?An antigen test is an immunoassays test used for the detection of a specific viral antigen that indicates current viral infections.
Hence, Antigen tests detect the presence of a microorganism whereas, Evaluation of colony morphology is not enough as it is not a definitive test.
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Can someone please help me I’m stuck on this question!!
Answers
Answer:I think that answer is b
Explanation:
What two types of consumers are missing from this pyramid?
Please help I need to turn it in today !!!!
Answers
Answer:
decomposers and omnivores
Explanation:
Elements such as The lungs exchange gas to maintain homeostasis. In the alveoli of the lungs, oxygen and carbon dioxide are exchanged. This exchange occurs between the lungs and blood vessels (capillaries). The transport of oxygen to the blood does not require energy. The membranes of the alveoli are thin and moist and allow gasses to dissolve and be transported to and from the blood. When we breathe, a high concentration of oxygen enters the lungs and moves to the blood. Based on this scenario, is the transport of oxygen a result of osmosis, diffusion, or active transport?
Answers
Answer:
oxygen are among the few simple molecules that can cross the cell membrane by diffusion. And Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. The oxygen molecules move, by diffusion, out of the capillaries and into the body cells. While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries.
Explanation:
Answer:
This is Diffusion........... :)
A student examines a thin section of an onion-root tip and records the number of cells that are in each stage of the cell cycle. She observes 93 cells in interphase, 15 cells in prophase, 4 cells in metaphase 6 cells in anaphase and 2 cells in telophase. If the complete cell cycle in an onion-root tip cell requires 24 hours, what is the average duration of each stage in cycle?
Answers
Answer:
given:
Total number of cells in all stages = 93+15+4+6+2 = 120
Total time = 24 hours.
solution:
Percentage of cells in interphase
= 93 * 100 / 120 = 77.5%
in prophase
=15 * 100 / 120 = 12.5%
in metaphase
= 4 * 100 / 120 = 3.33%
in Anaphase
= 6 * 100 / 120 = 5%
in telophase
= 2 * 100 / 120 = 1.66%
The percentage of cells present in various phases exhibits the time spend by each cell in that phase.
Total minutes
= 24*60 = 1440
Total minutes spent in interphase
= 77.5 * 1440
= 1116 minutes
in prophase =12.5 *1440
= 180 minutes
in metaphase = 3.33*1440
= 48 minutes
in Anaphase = 5*1440
= 72 minutes
in telophase = 1.66*1440
= 24 minutes
Can someone help me
Answers
Answer:
its c my dude
Explanation:
brainliest plz
What does a shaded shape represent pedigree
Answers
Answer:
Affected with the disease or trait
Explanation:
I took Biology last semester
Which conclusion is supported by the fact that the black-breed boar, with its quality meat, and the white-breed sow, with its quality fertility, are swine that are often matched for mating? Animals are often paired based on physical traits and personal compatibility. Strong reproductive capability is the most important trait in animal breeding. Selective breeding combines ideal traits of animals to replicate in offspring. Swine are the only agricultural animal species that are currently crossbred.
Answers
Answer:
Selective breeding combines ideal traits of animals to replicate in offspring
Explanation:
Selective breeding is the process which involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics. It is also known as artificial breeding and provides both plants and animals with greater variation and higher chances of survival. Selective breeding can be used to produce plants with bigger and tastier fruits and vegetables, crops with greater resistance to pests and diseases, and bigger animals that can be used for meat or milk production. The process of selective breeding is of great importance to the farmer today as it has brought about greater economic advantages.
In the instance of the black-breed boar and the white-breed sow being matched for mating, the reason is to combine these desirable traits in their offspring. The black-breed boar produces quality meat while the white-breed sow has quality fertility. Mating between these two breeds will produce offspring which has both traits of quality meat production as well as quality fertility.
Which statement is true about the cell theory?
It is based on a random guess.
It is well-supported by evidence.
It is unchangeable and permanent.
It is a claim posed by some scientists.
Answers
Answer:
Im pretty sure it's either 2 or 4
Explanation:
Answer:
It is D
Explanation:
there are ____ different bases of DNA
Answers
Answer:
4
Explanation:
Because there are four naturally occurring nitrogenous bases, there are four different types of DNA nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C).
A small population will most likely
a. have plenty of food to eat. b. have exponential growth.
c. have plenty of space to live. d. All of these are correct.
Answers
Answer:
D. All of these are correct.
In cats, long hair is completely dominant to short hair. Jack the cat, his mother, and his sister are all short-
haired cats. With just this information is it possible to know if Jack's dad is a short hair or long hair cat? Why
or why not?
Answers
his dads hair is short.
if long hair is completely dominant then Jack's hair would be long if his dads hair was long.
How are the functions of a carbohydrate and a lipid similar?
A. Both are a source of energy.
B. Both are replicated during meiosis.
C. Both lower the activation energy of reactions.
D. Both dissolve nutrients in the digestive system.
Answers
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Answers
did you get the answer
Why do multicellular organisms perform mitosis and meiosis ?
Answers
Answer:
Multicellular organisms depend on mitosis for growth and repair. When an animal, plant or other multicellular organism grows, it makes more cells through mitosis. Organisms can repair some of their tissues, using mitosis to regenerate new cells.
Explanation:
HELP ITS FOR SCIENCE
Subject A (without diabetes)
Food type Starting blood glucose level (mg/dL) Blood glucose level after 1 hour (mg/dL) Blood glucose level after 2 hours (mg/dL) Blood glucose level after 3 hours (mg/dL)
candy 100
nutrient 100
fats 100
dairy 100
Subject B (with type 1 diabetes)
Food type Starting blood glucose level (mg/dL) Blood glucose level after 1 hour (mg/dL) Blood glucose level after 2 hours (mg/dL) Blood glucose level after 3 hours (mg/dL)
candy 100
nutrients 100
fats 100
dairy 100
What will the glucose levels be through out the next 3 hours? Put an answer for 1, 2, and the third hour for each box.
Answers
Answer:
Increases after each hour.
Explanation:
The blood glucose level will be increases after each hour in Subject B because no production of insulin. Due to this disease, the body can't regulate the level of glucose so by eating sweets like candy increases blood sugar in the body of subject B. The main reason of increase blood glucose level is the no production of insulin in the body of type 1 diabetes patient because this insulin hormone regulate the blood glucose level in the blood.
Answer:
subject A hour one 160 hour two 220 hour three 280
Explanation:ya welcome for subject b 1OO EVERY HOUR
Which process begins the formation of sedimentary rock?
Answers
a tick living
on the body of a deer is an example of:
1. mutualism
2. commensalism
3. parasitism
Answers
Answer:
3: Parasitism.
Ticks are parasites!
What natural force is responsible for the formation of the cliffs by the ocean in the picture?
Answers
Answer:
i think that the wind is responsible
Explanation: Cliffs are usually foreign because of processes called erosion and weathering. Weathering happens when natural events, like wind or rain, bricks of pieces of rock.
How do the posterior pituitary gland and the anterior pituitary gland differ in structure ?
Answers
The anterior pituitary receives signalling molecules from the hypothalamus, and in response, synthesizes and secretes seven hormones. The posterior pituitary does not produce any hormones of its own; instead, it stores and secretes two hormones made in the hypothalamus.
Answer:
they differ like
Explanation:
The anterior pituitary receives signalling molecules from the hypothalamus, and in response, synthesizes and secretes seven hormones. The posterior pituitary does not produce any hormones of its own; instead, it stores and secretes two hormones made in the hypothalamus.
How can a change in genotype affect the phenotype?
Answers
Answer:
The genome in which a genotype is found can affect the expression of that genotype, and the environment can affect the phenotype. Genes can also be pleitropic when they affect more than one trait. The single base pair mutation that lead to sickle cell anemia is a classic example.
Answer: population
Explanation: An organism's genotype is the set of genes that it carries. ... However, since an organism's genotype generally affects its phenotype, the phenotypes that make up the population are also likely to change. For example, differences in the genotypes can produce different phenotypes.
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Gray whales travel every year from the Arctic Ocean to have their offspring in the warmer waters of Mexico. They travel back to the Arctic Ocean for food as the water temperatures increase. What type of adaptation do gray whales have and how does it help them survive?
A) It is a behavior that allows the gray whales migrate and survive the changes in weather conditions.
B) It is a behavior that helps the gray whales eat a lot of food before they hibernate during cold seasons.
C) It is a life cycle difference that helps the gray whales produce a larger number of offspring.
D) It is a life cycle difference that protects the gray whales from fierce predators in the Arctic Ocean.
Answers
The answer is A I believe.
Answer:
A)
Explanation:
It is a behavior that allows the gray whales migrate and survive the changes in weather conditions.
