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KatRina [158]
3 years ago
12

One of the most important protective factors for drug use is

Biology
1 answer:
jekas [21]3 years ago
6 0
<span> One of the most important protective factors for drug use is</span> believing that there are strong sanctions against substance abuse at school.

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What factors influence gene flow between populations? 1. Differences in animal behavior and life history strategies can form eff
Whitepunk [10]

Answer:

All these factors affect gene flow:

1. Differences in animal behavior and life history strategies can form effective barriers to gene flow.

2. The home range size of the specie can also serve as a barrier to gene flow.

Explanation:

Firstly, gene flow is the transfer of genetic traits from one population to another. It is an important process for transferring genetic variations from one population to another.

There are several barriers or factors that limit or increase this gene flow.

Gene flow can be affected by mobility or rate of dispersal. It is expected to be lower in species with low mobility which is the movement from one place to another or low dispersal and vice versa. So a population with a shorter home range size can't effective aid gene flow as they interact only with individuals of the same population and vice versa.

Gene flow barrier could be by physical barriers which is the isolation of a geographical location preventing them from exchanging genetic materials with the same species of the sane population.

This type of physical barrier is usually but not always natural.

Barrier to gene flow could be reproductive preventing transfer of genectic materials due to differences in mating period, season of birth and so on.

Another barrier could be difrerneces in customs, ethnicity, religion and clans.

All these factors affect gene flow but the 3rd and 4th option are not totally true as barriers to gene flow are not totally physical geographical barriers and not totally anatomical differences but also soil preference and other factors.

Thanks.

3 0
4 years ago
Description of what is an ecosystem
shtirl [24]
A biological community of interacting organisms and their physical environment.
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4 years ago
Explain how cells specialize to form specific tissue and organs?
S_A_V [24]
<span>All cells have the same DNA. They are different because different genes have been locked up and only some of them are expressed. The process began in the embryonic stage, when stem cells are turned into different types of cells by turning off some of the genes. Scientists have been looking for ways to reverse the process, meaning turning specialized cells back into stem cells. Some success has been reported using different methods. The latest one uses a weak acid to stress the cells.</span>
5 0
3 years ago
6 different between mango and lotus
wariber [46]

Answer:

Mango tree: ... They are also grown mostly for the mango fruit production as the mango production achieved Mangifera is their genus name . They have relatively large leaves and can grow up to the height of 40 meter. Rose plant : They are the plants which means they are relatively small and has the weak stem.

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3 years ago
Explain the changes that occur as a tadpole becomes an adult frog or toad.
Stells [14]

Answer:

Well one of the first changes it the tadpoles start growing legs. Then it will continue to grow, changing and changing as it goes. Then it will start to live on land, and it will live on land as a tiny frog until it is completely grown up.

8 0
3 years ago
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