Which organelle in the cell is often called the "powerhouse"?
a. lysosome
b. chloroplast
c. mitochondrion
d. nucleus

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

What are some characteristics of a free enterprise economy?

What is a sex-linked genetic disorder that disrupts the blood's ability to clot? a.achondroplasia b.huntington's disease c.hemophilia d.albinism