Aroan coloration is the product of crossing a red bull and a white cow. You cross a roan bull and a red cow. Answer the following question,
What is the genotype of the roan bull?
O A. XRY
O B. RW
O C. rr
OD. RI

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid

What goes in and out of a cell respiration?

Which of the following would involve looking at different structures of organisms and comparing how similar they are? a. vestigial structuresb. radiometric datingc. homologous structures