Members of the genus Chlamydia are

A. thermophiles.
B. intracellular parasites.
C. classified with the deeply branching bacteria.
D. endospore-formers.
E. Gram-positive bacteria.


Answer: B

Biology & Microbiology

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Which of the following correctly displays the sequence of developmental milestones?

A) blastula ? gastrula ? cleavage B) blastula ?? cleavage ? gastrula C) cleavage ? gastrula ? blastula D) cleavage ? blastula ? gastrula E) gastrula ? blastula ? cleavage

Biology & Microbiology

Roberts Syndrome is an extremely rare genetic disorder that is characterized by mild to severe prenatal retardation or disruption of cell division, leading to malformation of the bones in the skull, face, arms, and legs. Shown below is a pedigree for a family with Robert’s Syndrome. Based on this pedigree Roberts Syndrome is inherited as a(n) ___________ trait?



A. autosomal dominant
B. autosomal recessive
C. sex-linked dominant
D. sex-linked recessive
E. random

Biology & Microbiology

Some cells of the stomach and brain produce which

of the following hormones when the stomach is empty? a. leptin b. ghrelin c. gastric juice d. pancreatic hormones e. cholecystokinin

Biology & Microbiology

Which of the following is NOT a response to low

temperature that increases the chance for survival? a. hypothermia b. shivering c. production of brown fat d. pilomotor response e. increased metabolism

Biology & Microbiology