Answer:
The stomach produces hydrochloric acid.It kills many harmful microorganisms that might have been swallowed along with the food.The enzymes work best in acidic conditions-at low pH
B, hormones that serve as chemical messengers im not 100% sure though
Answer:
A blood donor is a person who donates blood and a blood recipient is a person who receives donated blood.
Explanation:
B is the correct answer. They can sometimes show an extinction but not always.
Answer:
Environmental justice is the fair treatment and meaningful involvement of all people regardless of race, color, national origin, or income with respect to the development, implementation, and enforcement of environmental laws, regulations, and policies.
Explanation: During the Civil Rights Movement in the 1960s, activists participated in a social movement that created a unified atmosphere and advocated goals of social justice and equality. The community organization and the social values of the era have translated to the Environmental Justice movement
