Vasoconstriction in the gut is a likely response when an individual is
A) lying down after standing up.
B) standing up after lying down.
C) stressed and secreting stress hormones.
D) responding to increased blood pressure.
E) having an allergy attack with lots of histamine secretion.
Answer: C) stressed and secreting stress hormones.
You might also like to view...
What are the functions of cytochrome c and ubiquinone?
a. They translocate protons from the matrix to the inner mitochondrial space. b. They shuttle electrons between the protein complexes. c. They synthesize water from molecular oxygen. d. They produce ATP by substrate-level phosphorylation. e. They produce ATP by oxidative phosphorylation.
Haploid Cells, Diploid Cells, Meiosis
What will be an ideal response?
A narrow hybrid zone separates the toad species Bombina bombina and Bombina variegata. What is true of those alleles that are unique to the parental species?
A) Such alleles should be absent. B) Their allele frequency should be nearly the same as the allele frequencies in toad populations distant from the hybrid zone. C) The alleles' heterozygosity should be higher among the hybrid toads than in toad populations distant from the hybrid zone. D) Their allele frequency on one edge of the hybrid zone should roughly equal their frequency on the opposite edge of the hybrid zone.
Some bacteria have a water-soluble outer slime layer composed of
A) carbohydrate. B) lipid. C) peptidoglycan. D) protein. E) lipoteichoic acid.