During childbirth, a hormone produced by the pituitary gland causes muscles of the mother's uterus (or womb) to contract. the more contractions there are, the more hormone is produced. which best explains why this occurs? a. positive feedback is used to build more contractions. b. positive feedback is used to lessen the effects of the contractions. c. negative feedback is used to build more contractions. d. negative feedback is used to lessen the effects of the contractions.

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.

it allows shippers to carry commercial goods, which allows them to save time and money.

i do not believe this was true indefiantly the native americans would have lsot aganist america one they didndt have the resources and allies that america had and 2   indians werent as advanced at the time as they were not 3 americans had the expreince because some of the soliders from other wars fought in that war and were attecked etc

raymond can buy special closed cooling containers or a semi-truck with a air conditioned cooling system and an open box for the fruits,