In humans, which blood vessels have valves?

A) arteries in the neck
B) arterioles
C) capillaries
D) veins


Answer: D

Biology & Microbiology

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What is the significance of the presence of genes related to bacteria and archaea in the eukaryotic genome? (Select all correct choices.)

A. The ancestor of the modern eukaryotic cell was a primitive eukaryote. B. An archaeon engulfed a bacterium to form a eukaryotic cell. C. It shows evidence of horizontal gene transfer. D. It is a byproduct of meiosis.

Biology & Microbiology

List and discuss five structures in bacteria that allow them to cause disease

What will be an ideal response?

Biology & Microbiology

At the beginning of prophase I, there are _____ chromosomes in the germ cell that will develop into a human sperm

cell.

a. 23 b. 92 c. 46 d. half as many (as compared to somatic cell) e. twice as many (as compared to mature sperm)

Biology & Microbiology

A disease causing organism may be acquired through interaction with healthy people harboring an infectious organism

A) True B) False

Biology & Microbiology