Erica has six pet rabbits. Each one lives in a separate cage. She thinks that her rabbits would prefer to sit on a pile of hay rather than on hard cage floor. Erica put hay in one corner of each cage. What data should she collect to help her test her idea?

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

Plz ! what does it mean for an allele to be dominant?

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?