There are no covalent bonds holding the 4 subunits of hemoglobin together. how do you think these subunits stay together?

Could someone me with number one you

Name the part of the the brain labeled "e".

Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.