Answer:
A star's life cycle is determined by its mass. A star's mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born.
Answer:
c. neighbor
Explanation:
half the mother, half by fathee
Answer:
There are two main types of stem cells: embryonic stem cells and adult stem cells.Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost. They can divide over and over again to produce new cells.
B. Decayed matter - earthworm-duck
Answer:
B
Explanation:
I looked it up as well as thought