What structure separates the inner and outer layers that form sponges?

a. spicules
b. choanocyte
c. osculum
d. mesohyl


d. mesohyl

Biology & Microbiology

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The source of new alleles within a population is ____

a. natural selection b. mutation c. nonrandom mating d. adaptation e. genetic drift

Biology & Microbiology

What is the role of NADH in glycolysis?

a. NADH phosphorylates pyruvate. b. NADH catalyzes the transformation of dihydroxyacetone-phosphate. c. NADH binds and carries electrons. d. NADH destabilizes fructose.

Biology & Microbiology

The primary producers for hydrothermal vent

ecosystems are a. chemoautotrophs. b. chemoheterotrophs. c. phytoplankton. d. cyanobacteria. e. algae.

Biology & Microbiology

The 3 components of a nucleotide are:

a. Phosphate group, Nitrogenous Base, 6-carbon sugar b. Phosphate group, Nitrogenous Base, 5-carbon sugar c. Potassium group, Nitrogenous Base, 6-carbon sugar d. Potassium group, Nitrogenous Base, 5-carbon suga

Biology & Microbiology