Answer:
A.true
B.false
Explanation:
A. lymphocytes or bcells produce antibodies involved in humoral immunity
B. innate immune system is sustained long by innate immune cells
Answer:
Living things respond to their enviorment.
Explanation:
Hope that helped!
I believe the answer is C. The weaker members may die out and the stronger members become the species
Answer:(D) All of these
Explanation: Precipitation is more likely to occur when the air is saturated, when condensation nuclei are present, and when warm air rises and cools.