Four of the five answers listed below are
related by a common phase of mitosis. Select
the EXCEPTION.
a. chromosomes decondense
b. spindle microtubules disappear
c. nucleolus reappears
d. chromosomes separate
e. nuclear envelop re-forms
D
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Some microbes are not capable of growing on artificial media.
Answer the following statement true (T) or false (F)
Which of the following is a family of double-stranded RNA viruses?
A) Picornaviridae B) Coronaviridae C) Retroviridae D) Reoviridae E) Rhabdoviridae
Which genus and characteristic are NOT correctly associated?
a. Aquifex and hyperthermophile b. Deinococcus and radiation resistance c. Fusobacterium and psychrophile d. Cytophaga and cellulose degradation
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.The giraffe, as the tallest living land animal, has several adaptations for its height. To prevent blood from pooling in the head when it bends down to drink, the jugular veins of a giraffe have multiple one-way valves. Furthermore, a web of arteries and veins in the neck called the rete mirabile ("wonderful net") slows the flow of blood into the brain. These specializations of the ________ act as mechanisms to maintain ________.
A. nervous system; temperature homeostasis B. nervous system; homeothermy C. circulatory system; pH homeostasis D. circulatory system; blood pressure homeostasis