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 is your answer I believe because they do indeed provide a way to review other scientists work and or experiments
<span>The spinal cord is the foremost road for message attaching the brain and external nervous system.</span>
The body's spinal cord is preserved through the osseous spinal string pointed to the left side. The spinal string is produced of osseins named vertebrae / the backbone. Despite the spinal string is slightly adjustable, few of the vertebrae in the inferior segment of the spinal string displays wick.