A buffer

A) removes or replaces hydrogen ions in a solution.
B) is a compound with an extra electron in its outer shell.
C) has an unstable nucleus, making it highly reactive.
D) donates hydrogen ions to a solution.
E) consists of long carbon-carbon chains.


A) removes or replaces hydrogen ions in a solution.

Anatomy & Physiology

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Bone density usually reaches its greatest peak around age ________.

A. 35 B. 45 C. 55 D. 65

Anatomy & Physiology

Differentiate between simple inheritance and polygenic inheritance

A) In simple inheritance, phenotype is determined by a single locus. In polygenic inheritance, phenotype is determined by multiple loci. B) In simple inheritance, phenotype is determined by multiple loci. In polygenic inheritance, phenotype is determined by a single locus. C) In simple inheritance, phenotype is determined by only one parent. In polygenic inheritance, phenotype is determined by both parents. D) In simple inheritance, phenotype is determined by interactions among alleles of several different genes. In polygenic inheritance, phenotype is determined by interactions between a single pair of alleles. E) In simple inheritance, phenotype is determined by interactions between a single pair of alleles. In polygenic inheritance, phenotype is determined by interactions among alleles of several different genes.

Anatomy & Physiology

Receptors contain modality-gated channels within their plasma membranes.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Why did the TSH have NO effect on the BMR of the thyroidectomized rat?

A) The rat is missing its thyroid gland. B) The rat is missing its pituitary gland. C) The metabolism of the rat is already too high. D) The metabolism of the rat is already too low.

Anatomy & Physiology