When a dog chases a rabbit, which combination of body systems work together to supply the animals' muscle cells with the materials they need for energy? A. Excretory, nervous, digestive
B. Muscular, circulatory, immune
C. Integumentary, digestive, endocrine
D. Digestive, circulatory, respiratory

What are genotypes? what are phenotypes?

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat.o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat.habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

Look at the photo of the leaf, which term best describes this leaf ? a-simple.b-parallel.c-lobed.d-tooth.