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TLS Online TPP Program

#Question id: 4975

The observation that tusks were limited to males in several species, and were apparently not used in food-gathering, is evidence that the tusks probably

#Unit 9. Evolution & Diversity of Life Forms

  1. were used by males during the sex act.

  2. were maintained as the result of sexual selection.

  3. are homologous to claws.

  4. were insignificant to the survival and/or reproduction of dicynodonts.

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TLS Online TPP Program

#Question id: 12783

#Unit 10. Ecological Principles

Which of these ecosystems accounts for the largest amount of Earth's net primary productivity? 
TLS Online TPP Program

#Question id: 12784

#Unit 10. Ecological Principles

Which of the following is true of detrivores?
TLS Online TPP Program

#Question id: 12785

#Unit 10. Ecological Principles

Which of the following members of a marine food chain occupies a similar tropic level to a grasshopper in a terrestrial food chain?
TLS Online TPP Program

#Question id: 12786

#Unit 10. Ecological Principles

How are matter and energy used in ecosystems?
TLS Online TPP Program

#Question id: 12787

#Unit 10. Ecological Principles

A cow's herbivorous diet indicates that it is a(n)
TLS Online TPP Program

#Question id: 12788

#Unit 10. Ecological Principles

To recycle nutrients, the minimum an ecosystem must have is