What is it called when white blood cells follow a chemical trail

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

What factors contribute to the effect an environmental toxin has on the human body?