Which of the following describes the nutritional strategy of animals?
a. autotrophy, as either absorbing other life forms or by living in a parasitic association with them
b. heterotrophy, as either absorbing other life forms or by living in a symbiotic association with them
c. autotrophy, as either eating other life forms or by living in a symbiotic association with them
d. heterotrophy, as either eating other life forms or by living in a parasitic association with them
Ans: d. heterotrophy, as either eating other life forms or by living in a parasitic association with them
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Animals share a common origin with choanoflagellates
____________________ Indicate whether the statement is true or false.
Which of the following populations would have the highest population growth rate?
A. a population with a high natality and a high mortality B. a population with very few old animals in it and a large number of young animals C. a population in which 65% of the animals are males D. a population with low natality and high mortality
What is the major carbohydrate-storage molecule in plants?
a. Starch b. Cellulose c. Glycogen d. Deoxyribonucleic acid
The domain that contains unicellular organisms that live in extreme environments is
a. eubacteria b. eukarya c. archaea d. bacteria