Earth's mantle is

A) a layer of molten metal

B) a layer of hot rock

C) a layer of rock that forms Earth's outer skin

D) a dence ball of solid metal

Whales are mammals that live in the ocean and swim like fish. Which characteristic in whales prevents them from being classified as fish? a. They eat fish. b. They produce milk for their young. c. They bear live offspring d. They reproduce sexually.

Which of the following describes a dependent variable

Science is not based on inquiry, but rather on facts. True/False?,

If two elements are in the same chemical family, then what can be predicted about their spectra? Each element will have its own specific spectra. Their spectra will be the same because it is the same for a chemical family.

A farmer is breeding Andalusian chickens. He notices that when he mates a black chicken with a white chicken, the offspring are spotted black and white and look blue in color.

To test the effect of vitamin d on growth, two groups of rats were raised under identical conditions and fed the same diet. one of the groups received daily injections of vitamin d.

A researcher isolates a mutant variant of the bacterial translation factor ef-g. the mutation allows proper folding of the protein and binding of gtp, but does not allow gtp hydrolysis.

Which organ is part of two different systems?

2. Describe a flood along a coastline. What might cause this?

What kind of animals are found in the owl pellet ecosystem?