Which of the following statements is NOT a characteristic of amphibians?

a. they are the ancestors of reptiles

c. the adult form usually has legs

b. the larva and the adult form are similar

d. they are the first animals to adapt to life on land

Clearing paths on the ground under the snow in search for grasses during the winter is part of the niche of which population in the Arctic tundra? A. indigo buntings B. Himalayan tahrs C. white-tailed deer D. Norway lemmings

Which technique would be the most useful in determining the father of a child in a paternity suit? A) DNA fingerprinting B) karyotype of father and child C) polymerase chain reaction (PCR) D) computer-generated parental Punnett square

The angle at which the sun rays strike the surface of the earth is called what

Which statement best describes the scientific process

Jane started a bunny rescue organization to rescue unwanted pet rabbits in her state. A year later her organization had met its objective, but rather than shut down and lose their jobs, the employees and officers of the organization decided to

Why does air at 75% relative humidity and 30°C make your skin feel stickier than air at 75% relative humidity at 10°C? A. Warm air rises while cold air falls. B. The warmer air contains less water vapor per unit of volume. C.

When the two solutions are mixed, a clear solution with white powder at the bottom results., What has caused this change?

What receptor type is exemplified opening a channel to get sodium into the cell

What is the total amount of tissue of all organisms in a food chain called?

If an entire stack of rock layers has been folded, which of these would have occurred most recently?