Answer:
Phototaxis the bodily movement of a motile organism in response to light, it either moves away or toward the source of light
C. Allantois stores waste products produced by an embryo
hope this helps you out good luck.!!!!
Elderly people are most at risk
from minor trauma that results in serious spinal cord injury because of
preexisting degenerative vertebral disorders. Males are more prone to spinal
cord injuries than females but not as a result of preexisting disorder. This
may be related to an increased involvement in contact sports or a propensity to
participate in high risk activities. Neither females nor infants are at any
particular risk for spinal cord injuries.
Answer: a vector
Explanation:
A Vector is a physical quantiy that has can magnitude and direction. Examples of vectors are Velocity, acceleration, force, momentum etc
Now, since velocity is defined as the displacement experienced by an object in a specified direction, it is therefore correct to call velocity a vector
Answer:
It ocurred a selection by allopatric speciation
Explanation:
The allopatric speciation refers to the evolution in which the same specie starts developing different characteristics because of geographic barrers and this characteristics after some time generates two different specie.
It happens because usually according to the environment or the predators, species have to develop different adaptations so they can survive. In this case we have two different types of camouflage adaptations made by the salamanders acording to the conditions so for one specie it is better to camouflage from the predator mean while to the other is better to use lived colors to seem as it is a poisonous animal and in this way avoid the predators.
So you can see the same specie develop different strategies to survive because of a geographic separation, generating an allopatric speciation.
