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maw [93]
3 years ago
7

I neeed please ASAP

Biology
2 answers:
adoni [48]3 years ago
8 0

Answer:

option C

The immune system has been exposed to the polio virus so that the body responds rapidly to infections

Bad White [126]3 years ago
5 0

Answer:

Option C

Explanation:

A vaccine is usually given to boost up the immune system by making them familiar with the virus

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Name two examples of inorganic materials that allow for primary succession:<br>​
Ilya [14]

Answer:

<u>Areas where lava recently flowed, a glacier retreated, or a sand dune formed.</u>

Explanation:

I don't know if this'll help you, but I think that should be somewhat about primary succession.

4 0
2 years ago
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
Using a presticide on fungi generally takes several applications because
algol13

Answer:

fungi reproduce very quickly, so there is always new growth that needs addressing.

Explanation: I hope this helps

4 0
3 years ago
What is the s phase?
Alex777 [14]
The phase of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase.
5 0
3 years ago
What criteria would you use to assess the reproductive success of a plant?
alexira [117]
Reproductive success is defined as the passing of genes onto the next generation in a way that they too can pass on those genes. This is not solely the number of offspring produced by an individual, but also, as Ronald Fisher outlined in 1915, the probable reproductive success of those offspring, making mate choice (a form of sexual selection) an important factor in this success,[1] making biological fitness a key element in the theories of natural selection and evolution.
6 0
3 years ago
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