Actinomycetes

A. form sexual spores, that is, they are used for sexual reproduction.
B. do not form spores.
C. form heat resistant spores.
D. form asexual spores.


Answer: D

Biology & Microbiology

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What challenges does respiration in water present? Check all that apply.

_____ The density of water is very high relative to air. _____ Water holds approximately 30 times less oxygen when compared to air. _____ Water requires an additional energy expenditure to move across epithelial surfaces. _____ Water moving across respiratory surfaces removes heat from the animal. _____ Water breathing animals have a high risk of desiccation.

Biology & Microbiology

Cross-talk between second messenger pathways is probably involved in particular types of olfactory signal

transduction in many animals.

a. True b. False

Biology & Microbiology

In humans, males are the ____ sex, and females are the ____ sex

a. autosomal, maternal b. recessive, dominant c. dominant, recessive d. homogametic, heterogametic e. heterogametic, homogametic

Biology & Microbiology

Referring to the above diagram of the brain, H

identifies which region?

a. corpus callosum b. hypothalamus c. cerebrum d. midbrain e. medulla oblongata

Biology & Microbiology