Coal and natural gas are examples of A) nonrenewable resources. Those are resources that cannot be used again and again and can run out if their supply runs out.
Answer:
The students are asked, how do the embryos provide evidence for organic evolution.
Explanation:
The embryos of different vertebrate groups have been found to have similar morphological features during the early stages of development. This similarity suggests a common ancestry. The closer the resemblance between the embryos in early stages the closer the phylogenetic relationship of the organisms.
Calcium carbonate or silica