Viroids infect

A) bacteria.
B) plants.
C) fungi.
D) plants and animals.
E) all organisms.


B
Bloom's Taxonomy: Knowledge
Section: Other Parasitic Particles: Viroids and Prions
Learning Outcome: 13.22

Biology & Microbiology

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Although especially useful to the giraffe, the rete mirabile is similar to a countercurrent heat exchange system in other related, less evolved, mammals. Thus a mechanism for _________________ homeostasis is likely to have evolved from a mechanism previously used for __________________ homeostasis.  

A.  blood pressure; pH B.  temperature; blood pressure C.  blood pressure; temperature D.  pH; blood pressure Adult giraffes can be up to 20 ft. tall, and thus require special adaptations to maintain appropriate blood pressure. One adaptation is the rete mirabile, a group of blood vessels that form a web or net-like structure to slow blood flow.

Biology & Microbiology

The zona pellucida is used for what?

a. protection of a mammal egg before fertilization b. nutrition for a mammal egg before fertilization c. recognition for a sperm cell d. provides immunity for a mammal egg before fertilization

Biology & Microbiology

Do trees really sequester carbon permanently or just while they are alive? What will be an ideal response?

Biology & Microbiology

Ferns spread from place to place by means of 

A. spores. B. pollen. C. seeds. D. eggs.

Biology & Microbiology