Biology High School

I need URGENT help with 16 through 18 pls!!!

I Need URGENT Help With 16 Through 18 Pls!!!

Answers

Answer 1

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

give an example of something that might stop a cell from checking things during the cell cycle

Answers

Answer:

A checkpoint is one of several points in the eukaryotic cell cycle at which the progression of a cell to the next stage in the cycle can be halted until conditions are favorable. ... The G2 checkpoint ensures all of the chromosomes have been replicated and that the replicated DNA is not damaged before cell enters mitosis.

A mutation in a tumor suppressor gene may stop a cell from checking things during the cell cycle.

Tumor suppressor genes are normally expressed genes that control the progression of a cell through the cell cycle.

These genes (tumor suppressor genes) act to repair mutations that occurred during DNA replication, slow down cell division, activate programmed cell death pathways (i.e., apoptotic pathways, etc).

For example, p53 is a tumor suppressor gene capable of controlling cell division rate by keeping cells from proliferating in an uncontrolled manner.

In consequence, mutations of the p53 gene are often observed in cancer cells that lost their ability to regulate the rate at which they grow.

In conclusion, a mutation in a tumor suppressor gene may stop a cell from checking things during the cell cycle.

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The fact that choanoflagellates and collar cells of sponges resemble each other supports the inference that ________. Group of answer choices choanoflagellates are animals choanoflagellates are more closely related to sponges than they are to protists choanoflagellates and sponges evolved similar cell structures through convergent evolution choanoflagellates and sponges are sister groups

Answers

Answer:

choanoflagellates and sponges are sister groups

Explanation:

The choanoflagellates are small unicellular organisms belonging to the Protista kingdom. These microorganisms are collared flagellates morphologically similar to the choanocyte cells of animal sponges, which have a central flagellum surrounded by a collar of microvilli. In consequence, it has been suggested that choanoflagellates may represent the closest living relatives of primitive metazoans (i.e., they are sister groups to sponges). This hypothesis has recently been supported by both molecular phylogenetic and comparative genomic analyses.

1. Place the letters in the correct order for DNA replication (a, b, c): ___
a. Daughter strands are formed using complementary base pairing.

b. DNA unwinds

c. The DNA of the daughter strands winds together with its parent strand.
2.Why is DNA replication called “semi-conservative”? ___
3.What enzyme unwinds or unzips the parent strand? ___
4.What enzyme connects the new bases to the old bases in the DNA template? ___
5.___DNA replication results in two DNA molecules,

a. each with two new strands

b. one with two new strands and one with 2 original strands

c. each with two original strands
d. each with one new strand and one original strand

6.___DNA replication is said to be semiconservative because:

a. both RNA and DNA synthesis are involved in the process.

b. part of the telomere is lost during each round of replication.

c. a new double helix contains one old and one new strand.

d. each new strand is complementary, not identical, to its template

Answers

Explanation:

1. b-a-c

2. Because in each of the new pair of double stranded DNA formed after replication, a parent strand is present in each.

3. Helicase

4. DNA Polymerase

5. Option D

6. Option C

Describe the role of (A) bacteria fixing nitrogen as they live symbiotically with some plant species, (B) nitrifying bacteria, and (C) denitrifying bacteria in the nitrogen cycle.

Answers

I think It is A what is the question?

Explanation:

Which of the following is a large artery that pushes oxygenated blood away from the heart to the rest of the
body?
O Pulmonary artery
O Superior Vena cava
Aorta
Pulmonary Vein

Answers

It is the aorta, which is basically the main artery in the body
The aorta, it’s the largest artery in the body

meaning of cell or cytology​

Answers

Answer:

the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.

Explanation:

Cell is the building blocks of life.

How can the appearance of white baby rabbits be explained when the mother has white fur, and the father has black fur?

Answers

Explanation:

because the baby rabbit took after its mother and the

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

Both are a source of energy. So it will be A. Hope this helps!

State one way by which Carbon Dioxide decreases in the atmosphere

Answers

Answer:

The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.

Hope it helps!!!

Examine the Punnett square below. A cross between the two parents results in 50 offspring. How many of the offspring are most likely to have the dominant trait?

Answers

From what I know a punnet square like that gives a 75 percent chance of the dominant trait to that offspring. I’m not entirely good at the subject but I hope that helps?
75 % ........................

Hat percent of electricity in the UK will come from renewable sources by 2010? a. 1% c. 10% b. 5% d. 40%

Answers

Answer:

C, 10%

Explanation:

For the year of 2010, it's definitely 10%

THIS IS EARTH SCIENCE
PLEADE ASNWER THE Two QUESTIONS IN THE PICTURE

How do ocean currents affect the coastal regions of S.America at 20 degrees south latitude

When a lake freezes over. How does the energy content of the lake change?

Answers

Answer:

Explanation:The remaining air (air that does not descend at 30 degrees North or South latitude) continues toward the poles and is known as the westerly winds, or westerlies

Question: How do ocean currents affect the coastal regions of S.America at 20 degrees south latitudeAnswer: Warm and cold ocean currents can affect the climate of an area along the coast if the winds blow in from the ocean. Warm ocean currents heat the air above the water and carry the warm air to the land, increasing the temperature of the coastal regionQuestion: When a lake freezes over. How does the energy content of the lake change? Answer: Liquid water has more energy than frozen water. When water freezes it gives up some of the water's energy. This energy that is given up is the latent heat of freezing. When the water was freezing latent heat of freezing energy was being released(WATER IS THE LAKE)Bonus: I know that during melting, there is no temperature change as the heat energy is used to do work against potential bond energy but why doesn't temperature change when freezing? Freezing is the opposite process of melting. If the temperature does not increase as the ice melts, the temperature will not decrease as water freezes. Melting and freezing are entropy changes. Entropy measure the amount of disorder in a system. A system, like ice, which has less freedom of motion, has less disorder. A system, like liquid water, which has more freedom of motion, has more disorder. So water has more entropy than ice. Ice is a very ordered arrangement of H2O molecules in a crystalline form. As heat energy is added to ice, the energy is used the break the bonds between the H2O molecules in the ice crystals. So, the temperature remains constant. You might say that the energy that is added to the ice is used to increase the entropy of the system, instead of increasing the temperature of the system.-TAY brainly please

How do the nutrients in soil cause problems when erosion relocates the soil to ponds or lakes?

They cause algae to reproduce rapidly causing algae blooms.
They poison the microorganisms that break down dead organic matter in the ponds or lakes.
They poison the fish in the ponds or lakes.
They change the color of the water and reduce aquatic photosynthesis.

Answers

They cause algae to reproduce rapidly

A) They cause algae to reproduce rapidly causing algae blooms.

helppppp plzzzzzzzzzzzz​

Answers

Answer:

The answer is A.

Explanation:

The question is asking how the moon phase changes from a new moon to a full moon. You can see on the Picture that when it is a full moon, the order from left to right is Sun, Earth, and Moon.

what is sodium E621 know as MSG is​

Answers

Answer:

MSG is short for monosodium glutamate. It is common food addictive-with the e-number E621 that is used to enhance flavor.

Explanation:

MSG is derived from the amino acid glutamate or glutamic acid, which is one of the most abundant amino acids in nature.

How does the motion of particles in a gas change as the gas cools? (1 point)
They move more slowly.
b
They move in a more circular pattern.
ос
They move faster.
d
They move more randomly.

Answers

that link it takes all your information help

First to answer gets brainliest!!!!!
For this scenario, determine if it is a Harmful, Neutral or beneficial mutation.
NO LINKS OR BAD ANSWERS!!!!!

Answers

Answer :Neutral

Explanation: Ability keeps them from growing over 4 feet. but does prevent Alzheimer's,diabetes,and cancer    

Sound waves move the slowest through which medium? water ice air wood

Answers

Answer: The answer is the following.

the question is: sound waves move through which medium?

a. water

b. ice

c. air

d. wood

the best answer to this question would be c. air. <3

Explanation:

The Speed of Sound: Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Air is a gas so therefore, C. AIR IS THE CORRECT ANSWER :)

The sound waves move the slowest through which medium:

C.Air

The sound waves move the slowest through which medium is air. Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids.

Therefore, the correct option is C.

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Help me with this please

Answers

C can be the possible answer!

Why do scientists carry out experiments?
A.
Because scientific knowledge is based on observations

B.
Because scientific knowledge is full of untested theories

C.
Because scientists like to control variables

D.
Because scientists like to work in labs

Answers

Answer:

A

Explanation:

the scientist always makes a hypothesis

Earth science question. Please help

Answers

Answer:

answer choice 4, more rain and a steeper slope cause it to flow faster

Explanation:

Which organ is shaped like a small balloon and is located in the space between your hip bones

Answers

Answer:

bladder

Explanation:

Answer:

Bladder

Explanation:

The Bladder is shaped like a small balloon and is located in the space between your hip bones

People who have leukemia, cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?

Answers

Correct answer is S phase. cytosine into cytosine arabinoside triphosphate is what makes the answer S phase.

Enumerate ways on how humans produce sound:Ex:clapping your hands
a.__________________________
b.__________________________
c.__________________________
d.__________________________
e.__________________________

​

Answers

Answer:

vibrating vocal cords, stomping feet, gargling, whistling, cracking your knuckles

Answer:

•shouting•talking•singing•playing instruments•laughing•yelling•screaming•crying

Explanation:

yAn LNG po Alam ko e:^

GIVING BRAINLIEST AND THE REST OF MY POINTS!!!! :)



What life cycle adaptation does the desert gold poppy have that helps it reproduce and survive in its dry desert environment?

A) It produces large amounts of spores.
B) It only produces seeds in the summer when it is driest.
C) Its seeds stay dormant until there is enough precipitation for them to grow.
D) It can produce seeds all year round that can grow in dry and wet conditions.

Answers

The answer is c. It hides its seeds until it is wet enough for them to reproduce.

Why is it we cannot directly observe a genotype, but can sometimes infer it?

Answers

We cannot directly observe a genotype because there are multiple options for genotypes.

(a) Part A Which claim is best supported by the data?
A)As annual precipitation increases, the populations of Species A and B increase.
B)As annual precipitation increases, the populations of Species A and B decrease.
C)As annual precipitation increases, the population of Species A increases while Species B decreases.
D)As annual precipitation increases, the population of Species A decreases while Species B increases.

Part B If the precipitation levels observed in year '09 remain the same and other resources remain constant, identify and describe what can be predicted to occur with the population of Species B over the next 6 years? Enter the answer in the box.

Answers

Answer:

D

Explanation:

It increases

The claim is best supported by the data is as annual precipitation increases, the populations of Species A and B decrease. Thus, option B is correct.

When annual precipitation increases according to the data?

As annual precipitation increases, the populations of Species A and B decrease. As annual precipitation increases, the population of Species A increases while Species B decreases. As annual precipitation increases, the population of Species A decreases while Species B increases.

As annual precipitation increases, the populations of Species A and B increase. As annual precipitation increases, the population of Species A decreases while Species B increases.

If the precipitation levels observed in year '09 remain the same and other resources remain constant, identify and describe what can be predicted to occur with the population of Species B over the next 6 years.

Therefore, The claim is best supported by the data is as annual precipitation increases, the populations of Species A and B decrease. Thus, option B is correct.

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what does not pass through the stomata of leaves ​

Answers

Carbon dioxide and oxygen cannot pass through but move in and out

The dominant trait for flower color in pea plants is purple (P) and the recessive trait is white flowers (p). What is the phenotype of a plant with the alleles, Pp?​

Answers

the phenotype for Pp would be the color purple

Drag one of the nucleotides to a corresponding nitrogenous base on one of the two strands. What is
the role of DNA polymerase in this process?

Answers

Answer:

This enzyme is responsible for the production of DNA molecules from RNA molecules.

Explanation:

DNA polymerase is a type of enzyme that produces DNA molecules from RNA molecules. The enzymes play a vital role in the replication of DNA in which the enzyme produces two identical copies of DNA from one original DNA molecule. This replication of DNA is very important for cell division as well as growth of the organisms. Without this replication, no mitosis occurs in the body that leads to no growth of the organism so we can say that this enzyme plays a great role in growth of an organism.

The process of the formation of the new from the old DNA is called is replication.

The enzyme responsible for the formation of DNA replication is DNA polymerase.

The things required in the formation of new DNA is as follows:-

DNADNA polymeraseDNA ligase

The function of the DNA polymerase during the time of DNA replication is to get the nucleotide as a monomer to join together by the DNA ligase. The nucleotide joins together in the 5' to 3' direction.

The drag of one nucleotide from the sequence leads to the mutation. These lead to the form of the infected protein and form the abnormal character.

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