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.
Similarities: cell membrane, genetic material, ribosomes, cytoplasm
Differences: cell arrangement, true membrane bound nucleus, DNA structure, membrane bound organelles, ribosome size, cytoskeleton, sexual reproduction, cell division
Explanation: During endocytosis (endo means inside) a cell will use its cell membrane to engulf an object which is outside of the cell. This process takes effort by the cell, so it needs to use energy (ATP!) The process which is the reverse of endocytosis is exocytosis (exo means outside - think exit).
Epistasis is the phenomenon where one pair of gene interacts
with a second pair to control its expression by masking, suppressing or
modifying it. <span>The
term meant that a different gene masks the phenotypic effect of another gene. Moreover,
epistasis has a large influence on the evolution of phenotypic traits. </span>
Answer:
In biology, the relationship in which one organism lives inside another is described by the term endosymbiosis.
Explanation:
Endosymbiosis refers to a form of association that organisms have, in which one individual lives and performs his functions within another's body -using his resources to survive- being called the first symbiont, and the second host.
An example of endosymbiosis is found in bacteria that are part of the intestine of some living organisms, contributing to the process of food degradation.
Additionally, endosymbiosis is relevant in explaining the origin of eukaryotic cells from symbiosis between prokaryotic cells, which is known as endosymbiotic theory.
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