Having white fur in the winter to blend in with the snow
<span>Covered by the two cerebral hemispheres, the diencephalon is
the structure of the central nervous system that surrounds the third ventricle.
It is composed of several other structures. The most important of them are the
Thalamus, which plays a very important role in movements and emotions; and the
Hypothalamus, which provides functions including thermoregulation, appetite and
regulation of the sleep-wake cycle.</span>
Answer:
stimulate blood vessels to develop within cartilage
Explanation:
Most connective tissue, cartilage includes have a very inadequate blood supply because it has no blood vessels innervations in it. It relies on diffusion for nutrient supply of the chondrocytes cells. This is why the chondrocytes divide very slowly compared to other cells. This is exactly the same reason why healing of cartilage takes more time to heal. In addition, due to the chondrocytes fixed position in lacunae, they cannot migrate to a scar to begin the healing process. Cartilages attempt to repair themselves usually by fibrocartilage scar tissue that is not ideal for restoration of movement at a joint.
Answer:
Option A.
Explanation:
Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose.
Homologous structures are organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor. These structures do not have to look exactly the same, or have the same function
Vestigial structures no longer carry out any function.
