12. Which of the following best describes the level of biological organization that includes the interactions of different populations within each other?

A. Organism
B. Population
C. Community
D. Family

13. What is the most basic unit of life?
A. Tissue
B. Cell
C. Organ
D. Organ System

15. Which major part of a cell is composed of jelly-like substance of mainly w as well as substances like dissolved nutrients?

A. Nucleus
B. Nucleolus
C. Cytoplasm
D. Cell membrane

16.What is the function of the cell's nucleus?

A. It is the site for protein synthesis.
B. It keeps all the parts of the cell inside and act as a boundary.
C. It is the place within the cell where all cellular activities happen.
D. It controls and regulates all cell activities and it contains the cell's DNA.

NEED ANSWER TYSM ^^​