When a mother who is breast-feeding hears her infant cry, what typically happens? breast-swelling reflex milking reflex let-down reflex lactation reflex?

Which of the following is an oxidation-reduction reaction? (pictured below)

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

Look at the following answer choices and determine which belongs in the both category. testable, can be disproven explains natural phenomena, has evidence to support it prediction, tentative, one or more scientists working together well established, many different scientists working independently, highly reliable