Which group of Arthropods is primarily found in the marine environment?
a. Scorpions
b. Planarians
c. Arachnids
d. Polychaetes
e. Crustaceans
e
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Answer the following statements true (T) or false (F)
1. In the organismic model, communities are viewed as superorganisms. 2. A forest community consists of not only the trees and shrubs, but also the animals and microorganisms. 3. The time hypothesis suggests communities diversify with age. 4. In the Shannon diversity index, communities with a very uneven distribution of individuals will tend to have a higher H.
The compensation depth refers to:
a. the depth at which seaweed growth compensates for grazers. b. always 3 times the secchi disk depth. c. the depth which provides only enough light for photosynthesis but not growth. d. the depth where competition excludes a species. e. the depth at which phytoplankton dissolve.
The development of multicellular organisms likely originated
a. from colonies of unicellular organisms of the same species. b. from endocytosis of other cells followed by mitosis. c. from cooperation between different species of cells. d. from colonies of numerous species of cells. e. from endosymbiotic eukaryotes.
________ is the use of living organisms or their products to clean up the environment, improve human health, and provide more nutritious and disease-free food
A) Bioremediation B) Biotechnology C) Genetic engineering D) Biodegradation E) Bioprocessing