The bones in a whale’s flipper are the same as the bones in a dog’s front leg. what does this tell you about these two organisms?

they are of the same species
they have a common ancestor
they are both carnivores
they both evolved the same way

Which image shows labeled organelles that are present only in plant cells?

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

What type of pollution does household garbage cause