Which of the following is most likely to cause increases in a predator population?
a. fewer prey
b. a reduction in competition
c. more parasites
d. a period of drought
the medulla, part of the brain stem, reacts quickly to increased levels of co2 in the blood and stimulates a response from the
a. excretory system
b. immune system
c. respiratory system

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.