What are the major trophic groups of terrestrial microbes and where in terrestrial ecosystems are they found?
What will be an ideal response?
Major groups of microbes in terrestrial ecosystems include decomposer microbes, root symbionts like mycorrhizal fungi (both ectomycorrhizal and arbuscular mycorrhizal) and N fixers, endophytes of plant tissues, and both plant and animal pathogens. Microbes are found throughout terrestrial ecosystems, but certain parts of terrestrial ecosystems have more microbes than others. Decomposers are found in dead plant tissue like wood, soil, and even bedrock. Root associated microbes are found mostly in the rhizosphere and the rhizoplane, and in fact this is where most soil microbes are found as well (because there is so much plant carbon available through the root system). Endophytes can be found throughout plants, as can plant pathogens.
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A. flavonoids. B. terpenoids. C. polyketides. D. alkoloids. E. B-carotenes.
Which of the following is not true about Methylococcus and Methylomonas?
A. They contain complex arrays of intracellular membranes when using methane. B. Most species are capable of forming cysts. C. They are strict anaerobes. D. All of the choices are correct.
What are the three types of muscle, and where are they found?
What will be an ideal response?
An animal with a simple netlike nervous system is the
A. octopus. B. hydra. C. planarian. D. cat. E. earthworm.