What is a tetrad?

a. a chromatid before meiosis
b. another term for a sperm cell
c. a haploid cell produced by meiosis
d. two sets of sister chromatids

What field of science did harry hess study?

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.