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, 22.06.2019 02:30, nstacie40
Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a. earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c. earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.
Answers: 1
Biology, 22.06.2019 07:30, TheaMusic524
Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.
Answers: 2
Biology, 22.06.2019 10:50, keasiabradley
Overtime the pond slowly becomes more acidic due to the release of chemicals from a nearby factory. which of the organisms would most likely survive the change to their environment?
Answers: 1
William harvey discovered circulation. first, as he tightened a bandage around an arm, he noticed th...
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