Whoever answers this question will get brainliest! and explain, giving a simple "yes" isn't . does blood always carry a lot of oxygen to various parts of your body?

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point