Discuss 3 reasons why the crustaceans are considered the most important group of arthropods in the marine environment
What will be an ideal response?
The crustaceans have the most numerous species, highest abundance, and most diverse ecological roles. Many of the smaller species feed directly on primary producers; others are important detritovores, thus providing a link to the higher trophic levels. Many species are predators, thus adding complexity to the marine food web. The largest marine species, including the baleen whales, feed on crustaceans. Some such as crabs, shrimp, and lobster are part of the human diet.
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Four of the five items listed below are typically not easily digested and thus are not part of the quantifiable energy passed from one trophic level to the next. Select the exception
a. hair b. feathers c. cellulose d. muscle e. bone
Skeletal muscle is considered ________ muscle because conscious control can be exercised over its movement
Fill in the blank(s) with correct word
The process of cell division called ___________assorts gene pairs of homologous chromosomes independently of gene pairs on all other chromosomes.
Fill in the blank(s) with the appropriate word(s).
In which growth phase do bacteria grow exponentially?
A) lag phase B) log phase C) acculturation phase D) stationary phase E) habituation phase