The cell that makes up a human body need oxygem at all times

Which of these best describe conduction? a. transfer of heat between two objects that are touching b. transfer of heat by the actual movements of warmed matter c.the process in which energy is emitted by one object, transmitted through space, and absorbed by another d. the process in which energy is released by molecules

Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b.passive c. facilitated d.active b.passive

We all have different forms of genes from our parent(s).what are these different forms called? a.alleles b.characters c.dna d.resources