Which of the following is NOT an active process by which substances cross the plasma membrane?

A) Pinocytosis
B) Filtration
C) Active transport
D) Phagocytosis
E) All of these are active processes.

In aerobic respiration, the reaction of glucose with oxygen yields ____.

A) carbon dioxide only
B) water only
C) pyruvate only
D) carbon dioxide and water only
E) carbon dioxide, water, and pyruvate

Which of these is NOT a type of connective tissue?

A) blood
B) bone
C) lymph
D) nerve

Differential gene expression is defined as the:

A) ability of some cells to arrest their development under varying environmental conditions.
B) progressive fixation of the fates of a cell's descendants.
C) genetic variation found in various somatic cells of the same individual.
D) regulation during development that varies the type and quantity of gene products among cells.
E) constitutive expression of all genes in the somatic cells.

Why would the population of royal families (of England as well as other countries) not qualify for the Hardy-Weinberg principle?

Which of the following is a pivot joint?

A) The hip and shoulder joints
B) Intercarpal and intertarsal joints
C) The elbow and the interphalangeal joints
D) The joint between the dens and atlas
E) The knee