We need blood because it carries oxygen and helps us sustain life. The organ that pushes blood through the body is the heart.
A. move :) is the best choice that i got
Answer:
the warm water and abundant sunlight in the nertic zone limits the plankton population
Answer:
A. Specialized cells are made up of tissues
Explanation:
Cells make up tissues, tissues make up organs, organs make up organ systems and organ systems make up an organism.
All the other options are correct, but cells are not made up of tissues.
Hope this helps!
