Which of the following is a response of our innate defense system?
A) adaptive immunity
B) inflammation
C) cytotoxic T cell response
D) helper T cell response
B
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Basidiomycetes are the only fungal group capable of synthesizing lignin peroxidase. What advantage does this group of fungi have over other fungi because of this capability?
A) This is always the first group of fungi to begin any kind of plant decomposition. B) This fungal group can break down the tough lignin, which cannot be harnessed for energy, to get to the more useful cellulose. C) This is the only group of fungi that can use lignin for adenosine triphosphate (ATP) production. D) This enzyme releases heat energy from the breakdown of lignin that is used to kill off competing fungi.
The evolution of conducting tubes (sieve tubes) in land plants and brown algae is an example of
A. homoplasy caused by convergence. B. homoplasy caused by common descent. C. homoplasy caused by evolutionary reversal. D. homology caused by convergence. E. homology caused by common descent.
Answer the following statements true (T) or false (F)
1.Mycologists classify fungi into five phyla based on their sexual structures. 2.Ascomycetes are fungi that cause disease and are not beneficial to humans in any way. 3.A dikaryotic stage is common in the life cycle of many plants, protozoans, and fungi. 4.Salt and sugar in high enough concentrations retard mold growth by limiting the ability of these organisms to take up water by osmosis. 5.Some animals are autotrophs.
?Nonsense mutations change termination codons into amino acid codons.
Indicate whether the statement is true or false