Answer: Cell membrane is layer which is present in all living cells. It is present under the cell wall but in some cases such as plant cells.
Explanation: It is composed of lipid bilayer and proteins embedded in it. Phospholipids, glycolipids and sterols is the composition. Its function is to protect the cell from extracellular environment. It is semipermeable membrane that js allow only selected molecules to pass.
Answer:
I would say it is E.
Explanation:
because fish, penguins, and dolphins are aquatic animals. It can't be A. because if it were vestigial it would be useless. It can't be B even though it does seem like the right answer because the are all aquatic. It can't be C. because it would been that the same species would have the same niche which is not possible. It can't be D. because every organism is evolved from a common ancestor.
"The process of dissolving bone and returning its minerals to the bloodstream is known as resorption." It is the process by which osteoclasts break bone tissue and release the minerals, causing a transfer of calcium from bone tissue to the blood.
In the cycle of bone growth, resorption is the breakdown and assimilation of old bone. It remove hard bone tissue during the resorption (remodeling) process, and osteoblasts then lay down new bone cells.
Bone loss, or a reduction in bone mass and bone density, is caused by bone resorption. This may be brought on by health issues including hyperparathyroidism, hypovitaminosis D, or even aging-related decreases in hormone synthesis.
To learn more about resorption and minerals here,
brainly.com/question/10437101
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Isotopes of an element are defined has that has same atomic number but different mass number mean they have different number of neutrons
so the statement that best describe a similarity is
<span> same atomic number; different mass number
</span>so correct option is C
hope it helps
