Mitosis helps in the growth by means of hyperplasia. It also helps in reproduction in single celled organisms.
Neuron and Red Blood Cells doesn't undergo cell division once formed.
Osteoblasts help in forming new bones and joining old ones after there's a fracture in bone.
<h3><u>Explanation:</u></h3>
Mitosis is the process by which a cell divides into two daughter cells. It helps in growth of multicellular organisms as well as reproduction in single celled organisms.
The Red blood cells are formed from the bone marrow megakaryocytes and never undergo mitosis. Same are the neurons which are formed from stem cells and never undergo cell division.
The osteoblasts come into action as the bone breaks. They diposit new calcium compounds between the broken part of bones. This leads to irregular growth of bones between them which is then remoulded and brought back to shape by osteoclasts and osteocytes.
Answer: The first three zones of the ocean are called the Intertidal zone, the Neritic zone, and the Open ocean zone.
The open-ocean zone is then split into 3 subzones. These subzones are called; <u>The sunlit zone, twilight zone, and the benthic zone. </u>
The sunlit zone is home to the plankton and jellyfish. The twilight zone is home to the giant squid and deep-sea hatchet fish. The benthic zone has over 200,000 plants and animal species that do not need light to survive.
Explanation:
Answer:
B) Global climate changes
Explanation:
The greatest threat to the survival of large predator animals such as mountain lions and tigers is the change occurs in climate. Due to climate change, the temperature of the whole world increases. On mountains, the temperature is very low which is favorable for the growth of mountain lions and tiger. But increase occurs in the temperature of these mountain areas due to global warming, these animals die.
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Answer:
C.) Slash-and-burn
Explanation:
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