The jellylike substance that fills the chamber behind the lens is

a. the vitreous humor.
b. the aqueous humor.
c. blood.
d. a solution rich in glucose.
e. the enzymes for proper function.


A

Biology & Microbiology

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Which of the following is NOT an example of sensory adaptation?

a. a loss of the sense of pressure of clothes against the skin b. adjustment to repeated jumping into a body of cold water c. response to lack of oxygen at high altitudes d. eventual loss of awareness of a constant noise e. the loss of the ability to smell a person's perfume or cologne after being in that person's presence for some time

Biology & Microbiology

Ancestors of ____ may have possessed mitochondria, which were lost or reduced during evolutionary history

a. Paramecium b. Laminaria

c. Amoeba d. Euglena e. Giardia

Biology & Microbiology

Both DNA and RNA are made up of building blocks known as

A. genes. B. codons. C. amino acids. D. nucleic acids. E. nucleotides.

Biology & Microbiology

Which enzyme is used by RNA viruses to directly replicate the viral RNA genome? 

A. RNA-dependent DNA polymerase B. Reverse transciptase C. DNA-dependent RNA polymerase D. RNA-dependent RNA polymerase

Biology & Microbiology