The specific relationship between a legume and its mutualistic Rhizobium strain probably depends on _____
A) each legume having a chemical dialogue with a fungus
B) each Rhizobium strain having a form of nitrogenase that works only in the appropriate legume host
C) each legume being found where the soil has only the Rhizobium specific to that legume
D) specific recognition between the chemical signals and signal receptors of the Rhizobium strain and legume species
D
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Which one of the following is not a fungus?
A) Aspergillus B) Candida C) Penicillium D) Prototheca
Echinoderms often have an important ecological effect on their environment. Provide at least 2 examples of their effects in particular locations
What will be an ideal response?
In the theory of evolution, which of the following evolves?
a. phyla b. classes c. populations d. individuals e. kingdoms
The osculum of a sponge is entirely blocked by a fungal infection. Predict what will happen.
A. Choanocytes will no longer be able to function. B. Digestion will be prevented from occurring. C. The flow of water out of the sponge will decrease. D. Water will be unable to enter the sponge.