Horses share a larger percentage of their genes with dogs than with earthworms. What does this suggest ?

Horses are more closely related to dogs than earthworms

Explanation:

The more DNA you share with an organism, the more closely related you are.  This is because shared DNA implies a common ancestor.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."