Answer:
commensalism is your answer
Explanation:
commensailisn is where both organisms benefit and neither bring harm to each other.
Answer c it increases the chance of survival
Answer:
a) A, Rh-negative; B, Rh-positive
Explanation:
Hemolytic disease of the newborn (HDN) is characterized by rapid breakdown of red blood cells of baby. It usually occurs when the mother has Rh negative blood group and the child has Rh positive blood group. Since mother does not produce Rh antigen her immune system considers Rh antigen as foreign.
During the first pregnancy the blood of mother and child mix due to breakage of placenta or some other reason. Mother's immune system senses the presence of Rh antigen in baby's blood and makes antibodies against it in case it is needed in future. During second pregnancy if the baby again has Rh positive blood group, antibodies against it travel from placenta and fight the Rh positive blood cells. This leads to destruction of baby's blood cells leading to HDN.
Answer:
decreasing the heart rate
Explanation:
Answer: Hox genes help lay out the basic body forms of many animals, including humans, flies, and worms. They set up the head-to-tail organization. Small changes in such powerful regulatory genes, or changes in the genes turned on by them, could represent a major source of evolutionary change.
(change the words a little bit)
Explanation: