The presence or absence of an envelope is not useful in classifying viruses because any given virus may at one time have an envelope and at another time not have an envelope.
Answer the following statement true (T) or false (F)
False
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For each tissue type below, choose the type of organism that it is found in: a. animal b. plant
________ connective tissue ________ vascular tissue ________ dermal tissue ________ epithelial tissue ________ ground tissue _______ muscle tissue ________ nervous tissue What will be an ideal response?
In fungal reproduction, sexual fusion refers to
a. the combining of cells of opposite mating types. b. fusion between spores of different mating types. c. fusion between hyphae from fungi of different mating types. d. fusion between haploid nuclei in a dikaryon. e. the dominance of the haploid phase in the fungal life cycle.
Plasmids CANNOT ____
a. self-replicate b. be transferred between bacteria. c. encode proteins. d. be produced by eukaryotes. e. carry genes separate from the bacterial chromosome.
Paired lungs are characteristic of
a. some fishes. b. all amphibians. c. all birds. d. all mammals. e. all of these.