Which of the following statements is true?A. Gene flow and natural selection always result in evolution.
B.Gene flow usually increases the genetic differences between two populations.
C.According to natural selection, organisms with poor adaptations will never reproduce.
D.Since genetic drift is random, it does not always favor the "healthier" or "better" organisms.

Answers

Answer 1
Answer:

The correct answer is option D, that is since genetic drift is random, it does not always favor the better or healthier organisms.  

A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.  


Answer 2
Answer:

Answer:

The answer is option D.

Explanation:

A component of development in which the frequencies of alleles of a populace change with ages due to examining blunder is known as hereditary float. It happens in every one of the populaces of non-limitless size, be that as it may, its persuasions are most grounded in little populaces.


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In what conditions can asexual reproduction occur?

Answers

Well, it mainly occurs in microorganisms (bacteria, protists, etc), but also it mainly occurs in the 'real world' when the reproduction need is basically quantity over quality. For example, dandelions spread their seeds via the wind when they get white and fluffy, as it allows the dandelion to spread many many 'offspring' with relative ease. So in short, asexual reproduction can occur in most environments, but asexual reproduction is only found in conditions where quantity over quality is key for survival of a species.

Asexual reproduction takes a variety of forms. The simplest one-celled organisms may reproduce by binary fission, in which the cells simply divide in half. This form of reproduction creates a clone of the parent, and has the benefit of usually being very quick and energy efficient. For example, bacteria that reproduce by binary fission can give rise to progeny every few hours.


hope this helps



Which has three times as many O atoms than N atoms?

Answers

The Answer is B because if we just look at the moles of nitrogen and oxygen they are in the ratio of 1:2. Since there are 3 moles with it, Even if we when we multiply this ratio by 3 the answer will be 3:6  and 6 is the double of 3 so B is the answer

HOPE IT HELPS!

Answer:

b

Explanation:

In snapdragons, there is one allele that produces red flowers and another allele that produces white flowers. Neither allele is dominant and heterozygous individuals have pink flowers. A plant breeder decides to cross a red flowered snapdragon with a pink flowered snapdragon. What percentage of the offspring do you expect will have red flowers?

Answers

You do:
R R
R
r
Your offspring would be: RR, RR, Rr, Rr
So, about 50% of the offspring will have red flowers
Your answer is
50%

Final answer:

When you cross a red snapdragon (RR) and a pink snapdragon (Rr), you will expect 50% of the offspring to have red flowers

Explanation:

In snapdragons, red and white flower color exhibits incomplete dominance, where the red (R) and white (r) alleles neither of them is completely dominant or recessive. This results in the heterozygous condition (Rr) appearing as pink flowers. In this case, the red flowered snapdragon would have a RR genotype, while the pink one would have a Rr genotype.

If you cross the red (RR) and the pink (Rr) snapdragons, the possible genotypes of the offspring would be RR and Rr, corresponding to red and pink flowers. Half of the offspring are expected to be RR (red), and the other half Rr (pink). Therefore, 50% of the offspring are expected to have red flowers.

Learn more about Incomplete Dominance here:

brainly.com/question/14053639

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Why is meiosis important for organisms? It allows for genetic variation among organisms. It determines which genes are dominant and which are recessive. It produces genetically identical cells. It provides a means of asexual reproduction.

Answers

Answer:

Option A- It allows for genetic variation among organisms.

Meiosis is important for organisms since it allows for genetic variation among organisms.

Further Explanation:

Mitosis and meiosis are two different types of cell division. Mitosis produces two daughter cells which are identical to each other. While in meiosis “four haploid” daughter cells are produced. It is a highly systematized cell division process as the spore or gamete produce must comprise one member of each homologous pair of the chromosomes. The crossing over results in genetic exchange between the non-sister chromatids of “homologous chromosomes”. Meiosis plays a significant role during the alternation of generation in plants and acts as a bridge between the sporophyte stage and gametophyte stage. During meiosis cell division, haploid gametes or spores are produced whereas mitosis produces daughter cells which are genetically similar to each other. During meiosis the pairing of homologous chromosomes occurs by synapsis which separate during anaphase.

Learn More:

  1. Learn more about meiosis brainly.com/question/1600165
  2. Learn more about the process of molecular diffusion in a cell brainly.com/question/1600165
  3. Learn more about human sperm and egg cell brainly.com/question/1626319

Answer Details:

Grade: High School

Subject: Biology

Chapter: Mitosis and Meiosis

Keywords:

Mitosis, meiosis, homologous pair, haploid, gametes, spores, four, synapsis, gametes, daughter cell, plant, cell division, crossing over.

Which African American activist seemed to condone segregation but strongly believed in schooling for blacks and founded Tuskegee Normal and Industrial Institute?

Answers

Booker T Washington was the African American activist that seemed to condone segregation but strongly believed in schooling for blacks and founded Tuskegee Normal and Industrial Institute. He was born on 5th of April in the year 1856 and died on 14th of November in the year 1915. I hope it helps you.

The correct answer is Booker T. Washington. I literally just read all about this today!


In grafting, the plant with the root system is called the scion rootstock cutting, and the portion of the plant with the buds is called the rootstock scion cutting.

Answers

In grafting, the plant with desired root system is called the rootstock, and the portion of the plant with the buds is called the scion.

The grafting is a horticultural technique in which parts from two or more plants are joined together to grow as a one single plant.
Rootstock is the plant selected for its roots because it can provide different properties, such as fruit size, or because it is resistant to drought or diseases. 
Scion is the plant selected for its leaves, flowers, fruits or stems.