Protists that ingest visible particles of food are called
A. phototrophs.
B. saprozoic feeders.
C. osmotrophs.
D. phagotrophs.
Answer: D
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Biological evolution occurs in ____ when specific processes cause genomes of organisms to differ
from their ancestors
a. individuals b. populations c. communities d. phenotypes e. sub-species
thymus has the _____ rate of cell production in the body, but only ____% of all lymphocytes entering the thymus survive to becoming circulating T-cells
Fill in the blank(s) with the appropriate word(s).
You are explaining the biological basis of depression to a friend. The most accurate description is:
A. Depression stems from an irregularity in the production, release, reception, breakdown, or reuptake of neurotransmitters. B. Depression can be traced to myelin loss, which causes remarkable nerve dysfunction due to the slowing or blocking of nerve conduction. C. Depression is a cognitive disorder that involves a clinically significant deficit in cognition or memory that represents a marked change from a previous level of functioning. D. Depression is characterized by one or more symptoms of a physical dysfunction for which there is no identifiable organic cause.
Which statements about acid precipitation are accurate? (Check all that apply.)A) Acid rain is intermediate between point-source and diffuse pollution.B) Mercury is a pollutant that often accompanies acid precipitation.C) Acid precipitation is a severe problem in areas with soils having high buffering capacity.D) Acid precipitation can affect aquatic ecosystems.E) Acid precipitation can affect forests, weakening the trees and making them more susceptible to disease.
What will be an ideal response?