Which portion of the brain plays a role in regulation of consciousness and sleep states?

a. basal ganglia
b. hippocampus
c. thalamus
d. pituitary


c. thalamus

Biology & Microbiology

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Four of the following are features found exclusively among all vertebrates. Which one is the exception?

a. notochord b. pharyngeal gill slits c. four legs d. post-anal tail e. dorsal nerve cord

Biology & Microbiology

An examples of a plant disease caused by an ascomycete is:

a. a microsporidial infection. b. stem rust of wheat. c. histoplasmosis. d. chestnut blight. e. corn smut.

Biology & Microbiology

All chordates have

A) a post-anal tail. B) a backbone. C) a bony endoskeleton. D) a ventral, hollow nerve cord. E) gills.

Biology & Microbiology

Cytokines are soluble regulatory proteins that act as intercellular signals and include substances such as interleukins, interferon, and growth factors.

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

Biology & Microbiology