Which organelle encloses and protects a cell's DNA?

a. peroxisome
b. nucleus
c. Golgi apparatus
d. endoplasmic reticulum
e. mitochondria


b. nucleus

Biology & Microbiology

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Antimicrobial agents that inhibit bacterial growth but generally do not kill the organism are known as:

a. bactericidal. b. antibiotic. c. bacteriostatic. d. antagonistic.

Biology & Microbiology

Which field of ecology analyzes how large-scale ecological factors influence local populations and communities?

a. conservation ecology b. mixed-use conservation c. alpha-diversity

d. landscape ecology e. community ecology

Biology & Microbiology

__________ cause habitat loss, degradation of habitat, and habitat fragmentation, all of which can

endanger the __________ species. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

There are ________ major phyla in the kingdom Protista.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology