What occurs during the coagulation phase of the blood-clotting reaction?
select one:
a. platelets aggregate at the wound site, and the fibrin mesh forms.
b. blood vessels near the wound site constrict to reduce blood loss.
c. endothelial cells divide to regenerate the walls of the blood vessel.
d. white blood cells aggregate at the wound site to reduce infection.

Can a trait be both polygenic and have multiple alleles? explain why or why not.

What evidence could be used to convince policy makers to change a shipping lane from going through a whale breeding ground? information on the number of all whale species currently alive information on the number of all whales hit by boats in the given area information on the number of whale deaths in the world's oceans information on the number of whale offspring born every year. (a) scientists could collect and combine data on fish populations all around the world to show that their populations are declining. (b) scientists collect and combine data on fish populations all around the world to show that their populations are increasing. (c) scientists work together and use past data to show that fish populations are becoming locally extinct in some areas. (d) scientists work together and use past data to show that some fish populations are adapting to environmental changes.

Analyze how the four requirements for life were identified by scientists