The lower genitourinary tract is usually free of microorganisms.
Answer the following statement true (T) or false (F)
False
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Modern botanists think that all plants evolved from a common ancestor that was an ancient green algae. What is the
best explanation for this hypothesis? a. They are autotrophs. b. They live on land. c. They have green leaves. d. They are green like green algae. e. They share many biochemical and metabolic traits.
Sequencing an entire genome, such as that of C. elegans, a nematode, is most important because _____
A) it allows researchers to use the sequence to build a "better" nematode, which is resistant to disease B) it allows research on a group of organisms we do not usually care much about C) a sequence that is found to have a particular function in the nematode is likely to have a closely related function in vertebrates D) a sequence that is found to have no introns in the nematode genome is likely to have acquired the introns from higher organisms
Adaptations to extreme cold
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. Both viruses and prokaryotes reproduce by binary fission. 2. The shape of a virus may be determined by either its capsid or its envelope. 3. The number of species that a specific virus infects is called its host range while the types of tissues that the virus infects is called tropism.