Which of the following statements about amphibians is true? A. Amphibians are represented by about 500 species of frogs, toads, and salamanders. B. Populations of amphibians in a few local areas have declined dramatically in the last few decades. C. Amphibians lay their eggs in dry, sandy areas close to a source of water. D. Their moist, absorptive skin makes amphibians very susceptible to environmental contaminants. E. Scientists increasingly perceive amphibians to be fair-weather species.

4the indian leaf butterfly has traits that allow it to resemble a leaf. the bright colors of the monarch butterfly indicate that the butterfly tastes bad and can be poisonous. how does the appearance of these butterflies them to survive? f the indian leaf butterfly is able to avoid predators while the monarch butterfly warns predators away. g. the indian leaf butterfly frightens predators away while the monarch butterfly poisons predators before they can eat it. h both butterflies rely on camouflage to avoid predation. j both butterflies cooperate with one another to avoid predation.

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone