A toxin blocks the active site on NADH dehydrogenase. What would the effect be on an organism? Be sure to describe which pathways would be affected and why that is important.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.

Which is an innovation of gymnosperms? gymnosperms are the first seed plants. gymnosperms are the first flowering plants. gymnosperms are the first vascular plants. gymnosperms are the first spore plants.