According to the fossil record, the most ancient group of fungi is probably the

A) glomeromycetes.
B) chytrids.
C) basidiomycetes.
D) zygomycetes.
E) ascomycetes.


B

Biology & Microbiology

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Which curves on the graphs may represent the temperature and pH profiles of an enzyme taken from a bacterium that lives in a mildly alkaline hot springs at temperatures of 70 °C or higher?

A) curves 1 and 5 B) curves 2 and 4 C) curves 2 and 5 D) curves 3 and 4 E) curves 3 and 5

Biology & Microbiology

Natural selection for a certain phenotype will affect the _____ .  

A.  genotype of an individual B.  genotype of a population C.  allele frequency of an individual D.  allele frequency of a population

Biology & Microbiology

A ____ is an underground stem that is greatly enlarged for food storage

a. sucker b. runner c. plantlet d. stolon e. tuber

Biology & Microbiology

Natural underground reservoirs consisting of layers of sand or porous rock that can hold water are called _______________________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology