Answer:
The answer is A. a tissue
Explanation:
Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body.
Answer:
the mean effect is dead you and your family
Answer:
D.
Explanation: Ecology: relation of organisms with one another or their surroundings.
Carbon is the basic element for living thing