Which cellular structure in an animal cell maintain homeostasis by controlling the movementof substances into and out of the cell?

What are the types of mutations, and how does each alter the encoded protein? college level answer

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

What is the average speed of a car that traveled 300.0 miles in 5.5 hours