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podryga [215]
3 years ago
15

True or false

Biology
2 answers:
yan [13]3 years ago
8 0
The correct answer is true
stiks02 [169]3 years ago
3 0

Answer:

it is true

Explanation:

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Knowing that some individuals from Island 1 colonized Island 2, biologists sample the Mainland and two Island populations fifty
raketka [301]

Answer:

The evolutionary mechanism that could be influencing the allele frequencies between both islands and the mainland population might be Founder Effect.

Explanation:

Genetic drift is the random change that occurs in the allelic frequency of a population through generations. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time and eventually, some alleles get lost, while some others might set. Genetic drift affects a population and reduces its size dramatically due to a disaster -bottleneck effect- or because of a population split -founder effect-. In <u>founder effect</u>, a new population originates when a few individuals who are coming from a bigger population carrying its genes, settle down in a new area and reproduce. This small population might or might not be genetically representative of the original one. Some rare alleles might be exceeded or might be completely lost. Consequently, when the small population increases in size, it will have a genetically different composition from the original one. In these situations, <u>genetic variability is reduced</u> and there exists the possibility of developing a peculiar allelic composition. If the number of individuals that originated the new population is low, the founder effect will be very extreme, because the effects of the genetic drift are inversely proportional to the original number of individuals.  

<em>In the exposed situation, the evolutionary mechanism that could be influencing the allele frequencies between both islands and the mainland population might be Founder Effect. The fact that both islands are similar in their frequencies might be due to little genetic variation on island 1, or because dispersion to island 2 is a recent event on time. </em>

5 0
2 years ago
____________ is the process of taking material into the cell by means of infoldings of the cell membrane. A) Diffusion B) Endocy
Nata [24]
B. Endocytosis is the correct answer
3 0
3 years ago
Read 2 more answers
A pure-breeding, tall pea plant with white flowers is crossed with a pure-breeding, short plant with red flowers. The F1 plants
DIA [1.3K]

Answer:

Null Hypothesis -

The observed frequency is approximately equal to the expected frequency of phenotype.

Explanation:

Pure Breeding Cross - TTww x ttWW

Genotype of offspring in F2 generation - TtWw

Null Hypothesis -

The observed frequency is approximately equal to the expected frequency of phenotype.

The chi square analysis is attached

The degree of freedom for this question is 3

The p value for X^2 estimated through chi square test is 0.5

Hence the null hypothesis is accepted.

6 0
2 years ago
What regulates the exit of partially digested food?.
olga_2 [115]

The way that partially digested food leaves the body is through the pyloric sphincter.

<h3>What is digestion?</h3>

The term digestion has to do with the breaking down of complex food substances that is taken in by animals during nutrition. Food that is digested will go out of the body in semisolid form.

Hence, way that partially digested food leaves the body is through the pyloric sphincter.

Learn more about digestion:brainly.com/question/1283194

#SPJ4

8 0
2 years ago
The membrane of lysosome is made up of ______​
liberstina [14]

Answer:

id  k i learned this today doing hw but i forgot

Explanation:

5 0
3 years ago
Read 2 more answers
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