which is not true of lichens?
they are an example of symbiosis.
they reproduce by soredia.
they consist of a fungus and a protozoan.
they are good indicators of air quality.
all of the above are true of lichens.

Tlymphocytes mature in the? a. thyroid gland. b. bone marrow. c. spleen. d. thymus.

Select the best answer for the question, ly 12. which of the following behaviors is not an inherited behavior?

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria