Canadian researchers reported that ovenbirds exposed to the noise of compressors used in the gas and oil industry ________
a. fled the area
b. raise fewer offspring
c. have permanent hearing loss
d. have stopped singing
b
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The functional unit of a muscle cell is:
A. a muscle fiber B. the sarcomere C. myosin D. actin
The longer an animal's gut, the more time it takes for material to pass through, and the more processing can occur. Therefore meat eating mammals typically have shorter guts than grazers. Why?
What will be an ideal response?
Antibodies and killer T cells recognize HIV or HIV-infected cells by binding to short pieces of viral proteins displayed on the virus or the infected host cell. These short pieces of viral proteins are called ________
A) coat proteins B) virosomes C) proteosomes D) epitopes E) episomes
How are pseudogenes formed?
What will be an ideal response?