Answer:
Explanation: both prokaryotes and eukaryotes contain cell membrane
Answer:
D- Iron
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Iron is the ultimate nuclear “ash,” from which no nuclear energy can be extracted.
our thyroid glands plays a main role in a human body. It secretes thyroxine and calcitonin. In which thyroxine help in growth and cellular metabolism and calcitonin helps to regulates calcium concentration in blood . If thyroid gland stops working then there is low level of calcium in our blood, which leads to mental and hormonal disorder. In this way a person's blood calcium level would be affected if his/her thyroid gland stops working.
<span>Primitive, single-celled life forms without organized nuclei are termed PROKARYOTES.</span>
Answer:
D. Washing your hands before eating.
Explanation:
Option a, b and c are examples of not practicing proper hygiene and they increase the chances of you getting diseases. Option D is the only example that practices proper hygiene.
