True, your legs are examples of levers.
Answer:
D
Explanation:
In multicellular organisms, the body is a system of multiple, interacting subsystems. Subsystems are groups of cells that work together to form tissues. Interactions are limited to the circulatory, excretory, digestive, respiratory, muscular, and nervous systems.
The correct answer is B. Natural selection occurs through generations and is in which organisms best suited to their environment survive.
Ground Tissue, being it is the plant's stems, roots, and leaves.
Answer:
A. Antibiotic
Explanation:
I think it is A. because it changes between the experimental group and the control group.
