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➷ The structure that provides the best surface for diffusion to occur is the bronchioles.
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Answer:
Explanation:
A gene can be turned on or off by environmental factors or from other cells that activate proteins known as transcription factors.
Answer:
A. Biodiversity will decrease .
Explanation:
- The loss of a keystone species can cause extinction or mass destruction of other species that are dependent on it because keystone species are those species which significantly influence the existence and survival of other species in an ecosystem
- Since, beavers are considered as the keystone species, their removal from the ecosystem will cause loss of many other species in the ecosystem resulting in Decrease in the biodiversity of that ecosystem.
A) platelets aggregate at the wound site, and the fibrin mesh forms
Although the blood vessels do constrict, that's during homeostasis
D would be the correct answer
