Answer:
rugae or gastric folds
Explanation:
not totally sure but i think so
Answer:
D is the correct a answer।
Answer:
The answer is Physical. Physical immunity occurs when a person immune system responds to antigen.
Explanation:
Both use oxygen, both produce energy, both give out carbon dioxide as the result and the overall chemical reactions are the same.
Hope this helps :)
Answer:
Bone.
Explanation:
Calcium is one of the important element present in the body. Calcium plays an important role in the muscle contraction. The calcium ions also acts as a signalling molecule during cell signalling.
The calcium is present in our extracellular fluids, bones, and teeth. The major constituent of calcium is present in the bone. The bone consists of around 90% body;s calcium.
Thus, the correct answer is option (b).
