This is because Pangaea explains that once there was one huge country that expanded across the whole world, but it split apart and animals that were once next to each other were drifting apart to other parts of the world where both would survive on both sides.
Cell
Tissue
Organ
Organ system
Organism
Brain, spinal cord, nerves
The brain controls thought, behavior, emotion, memory, and basic life functions. The brain is also the origin of control over body movement. The spinal cord connects the peripheral nervous system (PNS) to the brain; nerve impulses reaching the spinal cord through sensory neurons are transmitted up into the brain. Nerves primarily involve control and coordination of all parts of the body.
The nervous system interacts with every other organ system. For example the hypothalamus in the brain controls the pituitary gland and tells it when to produce hormones, this shows that the nervous system interacts with the endocrine system.
Hope this helps :)
Answer:
temperature. humidity environment
Explanation:
species will adapt to environment temperature and humidity whether it is a rain forest or snowy mountains
It is called homeostasis.Watch the video at 37:54
Answer:
Thus, the frequency of people who are heterozygous for this disease is 0.21
Explanation:
Given,
The frequency of gene p is 
As per Hardy- Weinberg equation,
Sum of allele frequencies for all allele at locus 
Which means sum of allele frequencies of recessive and dominant allele is 1
Substituting the value of p in above equation, we get -
Another equation of Hardy- Weinberg is
Substituting the value of p and q in above equation, we get -
Thus, the frequency of people who are heterozygous for this disease is 0.21
