Volumul de sange reprezinta 8% din greutatea corpului; plasma repezinta 55% din volumul sangelui , iar apa reprezinta 90% din plasma. Sa see claculeze: a)cantitatea de apa din plama unei persoane care cantareste 70 kg. b) cantitatea de plama pe care o prezinta prsina dupa o primire de 1 l de sange

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake

What are 3 reasons that natural selection occurs

How do high-energy electrons from glycolysis and the krebs cycle contribute to the formation of atp from adp in the electron transport chain? a. high-energy electrons interact with pyruvic acid to create a phosphate bond with adp, forming atp. b. high-energy electrons supply the needed energy to synthesize atp from the lower-energy adp in the electron transport chain. c. high-energy electrons supply a negative charge which causes the citric acid to oxidize, forming a phosphate group to bond with adp. d. high-energy electrons increase the temperature of adp so it easily reacts to form atp.