Which chemical controls blood vessel dilation?
a. acetylcholine
b. nitric oxide
c. serotonin
d. endorphins
e. dopamine
B
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Metatranscriptomics and metaproteomics are favored over metagenomics when ________ is of more interest than ________
A) gene presence / phylogeny B) phylogeny / gene presence C) function or gene expression / gene presence D) gene presence / function or gene expression
Which organelle is round and derives its name from the Latin word for "kernel"?
A) Golgi complex B) mitochondrion C) chloroplast D) nucleus E) lysosome
________ is the messenger that regulates blood pressure by causing arterial smooth muscle relaxation
Fill in the blank with correct word.
Which of the following is not an element taken in primarily by the roots of the plant?
A. nitrogen B. magnesium C. carbon D. phosphorus E. zinc