Answer:
the defenses are down
Explanation:
antibodies are actually quite necessary, they come from helper b cells to help fight infections, and even though helper t cells can fight, your body still needs antibodies hope i helped!
Mammals do; I'm in my science class
D. All can be measured with standard SI units.
Length can be measured in meters, temperature in degrees centigrade, and density in grams.
Answer:
D
Explanation:
The side not facing the sun is experiencing night because it is not receiving any light from the sun
