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Reil [10]
3 years ago
6

4b. why would the vena cava be classified as a vein? all veins carry blood back to the heart, except for the pulmonary vein. the

vena cava empty into the right side of the heart, so they technically bring blood to the
Biology
1 answer:
padilas [110]3 years ago
3 0
The answer is that <span>all veins carry blood back to the heart, except for the pulmonary vein. the vena cava empty into the right side of the heart, so they technically bring blood to the </span>main atrium.
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Como aseguramos que en la mitosis la nueva célula es idéntica a la célula madre ?!!!
lozanna [386]

Answer:

The daughter cells are genetically identical because mitosis is a process that ensures the equal distribution of the replicated genetic material between these cells

Explanation:

During mitosis, the DNA is duplicated during the interphase (S-phase). Subsequently, the replicated chromosomes are arranged in the center of the parent cell (metaphase) to be finally separated and equally distributed between the daughter cells.

8 0
3 years ago
What are the two main functions of mitosis?
Nikolay [14]

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.

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