Tertiary bronchi lead to bronchioles

a. true
b. false


Answer: a. true

Biology & Microbiology

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What causes antigenic drift to occur?

A. introduction of new genes from other viruses B. gradual changes in the amino acid sequence of viral proteins C. gradual changes in the viral genome due to replication errors D. gradual changes in both the amino acid sequence of viral proteins and the viral genome due to replication errors

Biology & Microbiology

The amount of available energy that can be used to do work is called

A. entropy. B. kinetic energy. C. free energy. D. heat. E. enthalpy.

Biology & Microbiology

How does parathyroid hormone (PTH) work to increase blood calcium levels? What is a disorder that can be caused by excess PTH production?

What will be an ideal response?

Biology & Microbiology

Most sensory systems involve

a. sensory neurons. b. specific nerve pathways. c. specialized brain regions. d. sensory neurons and specialized brain regions. e. all of the above.

Biology & Microbiology