The answer to this would be d. :)
Answer:
allele
Explanation:
a spot on chromosome is an allele
Answer:
An intrauterine device, also known as intrauterine contraceptive device or coil, is a small, often T-shaped birth control device that is inserted into the uterus to prevent pregnancy. IUDs are one form of long-acting reversible birth control.
The black box because black reflects more heat than white