Organisms that use CO2 as their source of carbon are called

A. organotrophs.
B. heterotrophs.
C. autotrophs.
D. chemotrophs.


C

Biology & Microbiology

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The simplest structure shared among all living organisms is the

A. gut. B. cell. C. photosynthetic chloroplast. D. community. E. nucleus.

Biology & Microbiology

What is the definition of energy?

A. The amount of order in a system B. The capacity to do work C. The movement of an object D. Particles moving in waves through a system

Biology & Microbiology

Scientists are documenting the level of radiation in ____ forests along the western coasts of North America because

they tend to take up and concentrate radioactive material, making it easier to detect.

a. aspen b. alder c. Douglas fir d. cedar e. kelp

Biology & Microbiology

What cell type develops into plasma cells?

A) T cells B) macrophages C) helper T cells D) mast cells e) B cells

Biology & Microbiology