Select all of the ways by which muscles help maintain body temperature.


Ans: shivering
constricting blood vessels

Biology & Microbiology

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The nucleophile of the first step of spliceosome-mediated pre-mRNA splicing is the:

A. 2' hydroxyl of the branch point adenosine. B. 3' hydroxyl of a free guanine nucleotide. C. 3' hydroxyl of the 5' splice site exon. D. 2' hydroxyl of the 3' splice site intron.

Biology & Microbiology

DNA polymerases add new nucleotides in what direction?

A. 5' to 3' B. 3 ' to 5' C. Both directions

Biology & Microbiology

Sphincters

a. are muscles in longitudinal arrangement. b. prevent movement of material through the digestive tract. c. are smooth muscles. d. are only found at the beginning of the stomach. e. can contract but not relax.

Biology & Microbiology

In any physical or chemical change, energy cannot be created or destroyed. This is the ________ law of thermodynamics

Fill in the blank with correct word.

Biology & Microbiology