On the basis of nutrient content, a mountain lake with little sediment or nutrients is classified as a(n) ________ lake

Fill in the blank(s) with correct word


oligotrophic

Biology & Microbiology

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Membrane delimited intracellular structures that perform specific functions in cells are called

A. organs. B. organelles. C. tissues. D. systomis.

Biology & Microbiology

Which of the following is/are TRUE regarding the function of the amygdala?

a. amygdalectomy leads to decreased fear and aggression b. electrical stimulation of the amygdala leads to reduced vigilance and attention levels c. human patients with amygdala damage fail to recognize fear in the facial expressions of others a. all of the above b. a and c

Biology & Microbiology

Which of the following could be used to sterilize plastic pipettes in plastic wrappers?

A. autoclaves B. incineration C. ionizing radiation D. ultraviolet radiation

Biology & Microbiology

Molecular clocks are based primarily on rates of

A. neutral mutations. B. favorable mutations. C. natural selection. D. horizontal gene transfer. E. detrimental mutations.

Biology & Microbiology