an extended period of time with little to no snow or rainfall-C
The answer is D. Quaternary
Answer:
survive in their environment
Explanation:
According to Darwin's theory of evolution, natural selection is the main mechanism. Darwin explains that organisms that have heritable traits that help them survive and reproduce, will be favorable by natural selection. Those favorable traits will enable organism to better adapt to their environment and to pass more genes on to the next generation (offspring).
Organisms adapt to their environment by changing their behavior, structural traits or physiology as a response to environmental change, so that they become well suited to it.
The answer would be burr holes. These are small holes that a
neurosurgeon creates in the cranium. Burr holes are used to aid dismiss heaviness
on the brain when fluid, for example blood, sizes up and begins to compress the
brain tissue. An epidural hematoma is measured as an extreme emergency. Marked respiratory
arrest or neurologic discrepancy can happen within minutes. Cure consists of
making an opening over the skull to cut ICP emergently, eliminate the clot, and
regulate the bleeding.
