When two atoms share a pair of electrons, the bonding is referred to as:

A. ionic.
B. covalent.
C. unstable.
D. hydrogen.


B. covalent.

Biology & Microbiology

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Sex-linked genes are ____

a. expressed differently based on the sex of an individual b. linked to the SRY sex-determining gene c. located on sex chromosomes d. determinants of the sex of an individual e. found exclusively in one sex or the other

Biology & Microbiology

DNA varies from species to species in _____

a. how many adenine bases bind with thymine rather than with cytosine b. whether DNA is a double or a single helix c. the variation in the backbone structure d. how many different bases it contains e. the sequence of its base pairs

Biology & Microbiology

Which classification includes fungi and bacteria?

a. herbivore b. carnivore c. omnivore d. decomposer e. photosynthetic organism

Biology & Microbiology

During reabsorption, organic nutrients and ions are moved by diffusion or active transport from the renal tubule into the

A) glomerulus. B) peritubular capillaries. C) glomerular capsule. D) outgoing arteriole. E) incoming arteriole.

Biology & Microbiology