____ are NOT composed of membranes. 

A. Golgi apparatus
B. Microtubules
C. Mitochondria
D. Endoplasmic reticulum


B. Microtubules

Biology & Microbiology

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The essential protective role for T cell immunity is protection from

A) viruses. B) extracellular pathogens. C) bacteria. D) intracellular pathogens.

Biology & Microbiology

Which area of biology states that living things undergo gradual structural and functional changes over long periods of time?

A. Evolution B. Genetics C. Transformation D. Morphology E. Phylogeny

Biology & Microbiology

Indicate whether acetyl-CoA carboxylase in the liver is activated or inhibited during FASTING.

A) Activated B) Inhibited

Biology & Microbiology

The potential damaging effects of free radicals to DNA can be averted by ________

Fill in the blank(s) with correct word

Biology & Microbiology