What is the function of T-lymphocytes? Select all that apply.
to assist other lymphocytes
to produce other lymphocytes
to kill cells infected with a virus or cancer
to help in the body's immune response
to circulate oxygen throughout the body

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

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.

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.