Gram-positive bacteria would stain __________ in a gram stain because of a thick layer of

__________ in their cell walls.
a. green; peptidoglycan
b. purple; peptidoglycan
c. green; cellulose
d. purple; polysaccharides
e. red; polysaccharides


B

Biology & Microbiology

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________ is the primary germ layer that forms the nervous system and the outer layer of skin and its derivatives, such as hair, nails, oil glands, sweat glands, and mammary glands

Fill in the blank(s) with correct word

Biology & Microbiology

The refractive index is a measure of how much light is _____ as it enters a material.

What will be an ideal response?

Biology & Microbiology

How is codominance expressed in an organism?

A) Both of the alleles in a heterozygote are expressed phenotypically in an individual. B) Expression of two different alleles alternates from one generation to the next. C) A heterozygote expresses an intermediate phenotype. D) Offspring exhibit several different phenotypic expressions of a single trait.

Biology & Microbiology

The sensation of movement or dizziness persists, even after an individual stops spinning, due to the

continued:a. movement of perilymph through the cochlea. b. movement of the tectorial membrane over the organ of Corti. c. movement of otoliths through the cochlea. d. stimulation of hair cells by the statoliths. e. movement of endolymph through the semicircular canals.

Biology & Microbiology