Biology, 14.11.2019 21:31 bbrooks9827
William harvey discovered circulation. first, as he tightened a bandage around an arm, he noticed that the fingers turned blue and cold. then, he used a less tight bandage and noticed that the hand swelled. with further research, what conclusion was he able to draw base from his experiment? a. the blood moving toward the hand contains oxygen. b. the blood moving away from the hand picks up oxygen. c. veins carry oxygenated blood and are deep in the skin. d. arteries carry deoxygenated blood and are deep in the skin.
Answers: 2
Biology, 21.06.2019 19:50
Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?
Answers: 3
Biology, 22.06.2019 01:20
During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent
Answers: 2
Biology, 22.06.2019 10:40
Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic
Answers: 1
William harvey discovered circulation. first, as he tightened a bandage around an arm, he noticed th...
Physics, 11.11.2021 01:40
Mathematics, 11.11.2021 01:40
Biology, 11.11.2021 01:40
Mathematics, 11.11.2021 01:40
English, 11.11.2021 01:40
Biology, 11.11.2021 01:40
Spanish, 11.11.2021 01:40
Mathematics, 11.11.2021 01:40
History, 11.11.2021 01:40
Mathematics, 11.11.2021 01:40