A orthotic device is an appliance applied to the body to stabilize or immobilize a body part, improve alignment, prevent deformities, protect against injury, or assist with motion or function
Answer:
External means on the outside, so it can be something like their fur color. Some other features can be number of legs, if they have wings or not, etc.
They stuck because the tree trunks were white.
Answer:
50% of mice would be grey (GG [phenotype is grey and genotype is grey])
50% of mice would be grey and brown (GB [phenotype is grey and brown])
GG is complete dominance
GB is codominant
Answer: A
Explanation:
Oxygen makes up another 20 to 21 percent of our atmosphere. It's essential for life on Earth, and interestingly enough, it is poisonous when highly concentrated. Our concentration of 20 to 21 percent seems just right.
