Which of the following terms describes NO3- ? NO2- ? N2O ? N2?

A) ammonification
B) denitrification
C) nitrification
D) nitrogen fixation
E) anaerobic respiration


B

Biology & Microbiology

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Which of the following is false regarding cnidarians?

A. They have an outer epidermis and inner endodermis, in between which is a gelatinous mesoglea. B. Cnidarians have a wider variety of cells types than sponges—allowing more sophisticated tissue function. C. Many cnidarians are predators rather than passive filter feeders D. Cnidarians have a separate opening for the anus and the mouth.

Biology & Microbiology

____ tissue serves as a scaffold in the developing embryo, but most of it is replaced by bone in adults

a. Bone b. Cartilage c. Tendon d. Cardiac e. Loose connective

Biology & Microbiology

Is the accompanying figure DNA or RNA? Is the circle closer to the 5' or 3' end?

What will be an ideal response?

Biology & Microbiology

Name and very briefly describe the three strategies for making vaccines

What will be an ideal response?

Biology & Microbiology