It is the last choice because their similar bone structures suggest they once had a common ancestor, which is why they are all mammals.
Answer:
The objective itself is usually a cylinder containing one or more lenses that are typically made of glass; its function is to collect light from the sample.
Explanation:
A telescope mirror can be made from glass that is somewhat less pure than that used to make a lens, since light does not pass through it.
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Answer:
The correct answer is option a.
Explanation:
Osteoporosis refers to a condition that weakens the bone, and enhances the threat of unanticipated and sudden fractures, also known as porous bones. It leads to an enhanced loss of bone mass and strength. The disease often advances without any kind of pain or signs.
There is a direct association between the reduction of estrogen post menopause and the emergence of osteoporosis. Postmenopause, the breakdown or resorption of bone takes over the formation of novel bone. Estrogen diminishes the function and number of osteoclasts. Thus, the reduction in the levels of estrogen after menopause leads to bone loss.
Answer:
Because of evolutionary traits based on the environment.
Explanation: This is probably because they live in a similar environment, so they both evolved to have similar adaptations to make them excel in that specific enviroment
