When might you need to measure an object's radius?

What is a sex-linked genetic disorder that disrupts the blood's ability to clot? a. achondroplasia b. huntington's disease c. hemophilia d. albinism

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

What is a photon? a. part of a ribosome b. a light particle c. a carbon dioxide molecule d. part of a chloroplast b. a light particle