How are lichens and mycorrhizae similar?
A) Both parasitize live plants, eventually killing them.
B) Both are pioneer species that colonize bare rock.
C) Both form symbiotic relationships with photosynthetic species.
D) Both are saprophytes that decompose dead materials.
C
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Which hormone stimulates spermatogenesis?
a. LH b. FSH c. testosterone d. progesterone
DNA codes for the production of
a. proteins. b. minerals. c. inorganic molecules. d. vital gasses. e. water.
Expression of the Hoxc6 gene causes ____.
A. ribs to develop on a vertebra B. the development of eyes C. limb bud development D. gill arches to close E. the development of hair
The discussion of carbohydrate catabolism includes some of the many metabolic variations microbes are capable of. Devise a set of biochemical tests to identify the Gram-negative bacteria mentioned. Assume you can detect various organic compounds. Prepare a dichotomous key of your identification scheme.
What will be an ideal response?