What two things help cells grow and live?

1. What promotes cell growth?

A growth factor is a naturally occurring substance capable of stimulating cell proliferation, wound healing, and occasionally cellular differentiation. Usually it is a secreted protein or a steroid hormone. ... Examples are cytokines and hormones that bind to specific receptors on the surface of their target cells.

2. what helps cells grow? For a typical dividing mammalian cell, growth occurs in the G1 phase of the cell cycle and is tightly coordinated with S-phase (DNA synthesis) and M phase (mitosis). The combined influence of growth factors, hormones, and nutrient availability provides the external cues for cells to grow.

Explanation:

oxygen & organelles

Explanation:

Once we are grown up, many cells mature and become specialised for their particular job in the body and they don't reproduce so often. But some cells, such as skin cells or blood cells are constantly dividing. When cells become damaged in any way or die, the body produces new cells to replace them. This process is called cell division.

as many times as you want

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles