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QveST [7]
3 years ago
15

Lifetime prevalence of posttraumatic stress disorder (ptsd) is highest among ____.

Biology
1 answer:
ExtremeBDS [4]3 years ago
3 0
War veterans returning from either Afghanistan or Iraq
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One of the original Amish colonies rose from a ship of colonists that came from Europe. The ship’s captain, who had polydactyl
ANTONII [103]

Answer:

B and C

Explanation:

When the Amish came to their new home, they were founding a new colony. This is considered a founding effect.

Now, there is another thing to keep in mind, and that is that the Amish are very strict about their custom, for example, the idea of family and identity. This led them to form couples, only among the members who belonged to the community.

As generations go by, genealogical relationships between individuals in the population become closer. This causes some genes, by mere probability, to become fixed (i.e. they are the only ones left in the population). As a consequence of this, the frequency of rare genes increases (polydactyly). This evolutionary process is known as gene drift.

6 0
3 years ago
Why do birds and humans have a 4 chambered heart
Basile [38]

Explanation:

so there blood can go in and out of there arteries and ventricles

3 0
3 years ago
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​stanley has entered a rehabilitation facility for treatment of his addiction to barbiturates. he is immediately prevented from
PolarNik [594]
​Stanley has entered a rehabilitation facility for treatment of his addiction to barbiturates. He is immediately prevented from using the drugs and experiences agitation, restlessness, increased respiration, and insomnia. This phase of treatment is called detoxification.
5 0
4 years ago
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In an ecosystem, why can only one species fill an ecological niche? (Site 1)
Anastaziya [24]

Answer:

Only one species can fill an ecological niche because each niche is destined exclusively for each species, since its structure, physiology and behavior determine it.

Explanation:

An ecological niche is the way in which each species relates to its environment, to other species and takes advantage of the resources available for its development, being an exclusive and individual characteristic of that species.

The ecological niche is a concept that many consider abstract, since it is unique for a species. Each species has a physical structure, functioning and behavior that differentiates it from the others, which leads it to occupy a certain place within an ecosystem, which would be its ecological niche.

Learn more:

Ecological niche brainly.com/question/718384

6 0
4 years ago
deforestation the chopping down of large numbers trees for human use is considered to have a negative impact on climate change.
Rudiy27

Answer:

Plants take in carbon dioxide from the environment for photosynthesis. Because trees are large, they need a lot of energy, which likely results in a lot of carbon dioxide being removed from the air. If they’re chopped down, there will be fewer trees to remove the extra carbon dioxide from the air.

Explanation:

answer from Plato

6 0
3 years ago
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