The water vascular system is not involved with:

a. gas exchange

b. excretion.
c. locomotion.
d. sensing of light.


d

Biology & Microbiology

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The changes in the genetic makeup of a population over time is called _______

A. homologous recombination B. model organisms studies C. genetic crosses D. biological evolution E. hypothesis testing

Biology & Microbiology

Animals that obtain their body heat from internal metabolism are called:

a. ectotherms. b. poikilotherms. c. endotherms. d. osmoconformers. e. osmoregulators.

Biology & Microbiology

George liked to go for very long runs; we can assume that this chemical becomes depleted during those marathons: ________

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the plants will be true-breeding?

A) 1 and 4 B) 2 and 3 C) 1—4 D) 1 only E) None

Biology & Microbiology