* Describe at what point in the cell cycle cells begin to divide uncontrollably.

1 answer:

8 0

Every cell in the body goes through a life cycle. Cells grow and divide to replace cells that are lost because of normal wear and tear or injury. Different cells grow and die at different rates. Some cells, such as epithelialepithelialA thin layer of epithelial cells that makes up the outer surfaces of the body (the skin) and lines hollow organs, glands and all passages of the respiratory, digestive, reproductive and urinary systems. cells, reproduce quickly. Other cells, like nerve cells, grow slowly. Both normal cells and cancer cells go through a sequence of steps, or phases, when they form new cells. This is called the cell cycle.

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Cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells.

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2 years ago

What is an ecological niche?

Yuri [45]

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Explanation:

sources: sciencedirect

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Read 2 more answers

What is intramembranous ossification? a. the formation of bone from preexisting hyaline cartilage models b. the formation of bon

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Answer:

c. the formation of bone from within fibrous membranes

Explanation:

On the basis of formation ossification process is divided into two types:

1) Endochondral ossification : The process by which bone is formed from haline cartilage.

2) Intramembranous ossification : The process by which bone is formed by replacing a fibrous membrane and not from cartilage. This type of ossification occurs as follows :

An ossification center appears in the fibrous connective tissue membrane.
Bone matrix is secreted within fibrous membrane
Woven bone and periosteum forms.
Bone collar of compact bone forms and red marrow appears.

Hence option c. the formation of bone from within fibrous membranes is the right option

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3 years ago