Answer:
vitamin A is essential because consuming too much supplemental vitamin A during pregnancy can cause birth defects.
Hope this helps!
Answer:
An example of a pathological condition that affects the skeleton is Osteoporosis
.
Explanation:
Osteoporosis is a disease that affects the skeleton in which the quality and density of bone are reduced. In this condition, the chances are high for easy bone fracture as they become fragile. Bone density takes place in very silently but progressively.
Osteoporosis condition leads to higher bone loss (osteoblast) than the growth of new bone (osteoclast). Bones become like a honeycomb, fragile and easy to fracture. This pathological condition generally occurs due to the imbalance of hormones that are a parathyroid hormone, estrogen, and to a lesser extent of testosterone.
This condition can be prevented by proper diet and appropriate amount of protein and vitamin D.
The answer is A i believe
Answer:
Biological species.
Explanation:
Various concept like morphology species concept, ecological species concept was introduced by the scientists to explain the biological species. The biological species concept is accepted today.
The biological species concept explains that the group of interbreeding population that has the ability to reproductively isolated from the other such group.
Thus, the correct answer is option (c).
