What is the smallest packet of electromagnetic energy that can be absorbed or emitted?

a proton
an electron
a quantum
a wave

An organism has the following traits multicellular cant photosynthesize has a skull. wht kingdom does this organism most likely belong too?

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )