Answer:
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Explanation:
Answer:
D
Explanation:
Absolute age is defined as the numeric age of fossils.
To identify the absolute age of a fossil, the amount of certain radioactive elements in the rock are measured. When fossils are formed in the rocks, a small amounts of radioactive elements is included in it. The process to identify age of fossil using radioactive elements is known radiometric dating. So, radioactive isotope and its decay product gives absolute age of fossils.
Hence, the correct answer is "D".
The organs of the urinary system are organs of excretion—they ... filter the blood to remove metabolic wastes and then modify the resulting fluid, which al- ... But in the kidneys, we find an unusual capillary bed that is both...
D, is the answer. If you take antibiotics more than you're supposed to your immune system gets used to it and it no longer works.
Two ways that suggest that reflex reactions help maintain homeostasis in the human body are
1. By maintaining breathing - Maintenance of breathing is also a reflex reaction that helps maintain homeostasis on human body.
2. By recognizing discomfort level - In this case the reflex action can give message to the brain that the movement is causing discomfort and the body can move back to original position.