Scientific Inquiry — Unit test Answers

A mutation that causes resistance in a population of beetles is an example of _______.a.macroevolutionb.microevolutionc.migrationd.reproduction

Which of the following best describes the fate of energy in ecosystems?a.It will ultimately be recycled back into the ecosystem.b.It flows from secondary consumers to primary consumers.c.It enters most ecosystems in the form of sunlight.d.It flows through and is used by ecosystems.

Amaya collected insects in the forest. She was unable to identify one unusual looking insect using a dichotomous key. Amaya concluded that the insect must be a new species. Which facts would support the conclusion that the insect is a new species?

Every time energy is transferred between organisms in a food web, some of the energy is lost as heat.

Refer to this portion of a dichotomous key for fish identification to answer the question.1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 25. (a) Has small fin on back near tail ® 6 (b) Has no fin on back near tail ® 76. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 10According to this dichotomous key, any catfish must have