Answer:
1 community
2population
3ecosystem
4habitat
Explanation:
the classroom is a community because its people of different cultures and race that come together and be one
all the mice in the classroom are considered a population because population is the number of people in a certain area
in the third statement there are all forms of organisms hence showing the biodiversity that ecosystems tend to have
the aquarium provides shelter to earthworms proving them with food of which a habitat provides both shelter and food
The answer to number 12 is mate.
Answer:
The FDA regulates the use of medicines, vaccines and food supplies in the United States thus contributing to the public health of the country. This organization is classified as a federal consumer protection agency. The FDA gives tools through its means and scientific knowledge to users to make decisions.
Answer:
Its cells have thick, hard walls.
Explanation:
