Question

1 multiple choice 10 points
what is the primary reason that multicellular organisms grow?
cells grow larger
cells change their functions
cells consume more nutrients
cells divide to create more cells
2 multiple choice 10 points
which of the following cell behaviors would lead to cancer?
normal cell function
cell death
uncontrolled cell division
controlled cell division
3 true or false 10 points
cells spend most of their time in interphase.
true
false

Explanation:

1. Multicellular organisms grow mainly because cells divide to create more cells. Cell - size has limits, and function - change or nutrient - consumption are not primary growth factors.
2. Cancer is caused by uncontrolled cell division. Normal cell function and controlled cell division are healthy processes, and cell death is a normal part of the cell cycle.
3. Cells spend most of their time in interphase, which is the phase of cell growth, DNA - replication, and normal metabolic activities before cell division.

Answer:

1. Cells divide to create more cells
2. Uncontrolled cell division
3. True