Biology, 29.07.2019 00:00 nborowy9579
Veins take blood back to the heart. which gas would be most abundant in a vein that takes blood from muscle cells in the arm back to the heart? a) carbon dioxide b) oxygen c) nitrogen d) hydrogen
Answers: 2
Biology, 22.06.2019 05:30, KArrington815
The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen
Answers: 1
Biology, 22.06.2019 13:00, minecrafter3882
Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.
Answers: 3
Biology, 22.06.2019 14:30, rallen1158
The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping
Answers: 1
Veins take blood back to the heart. which gas would be most abundant in a vein that takes blood from...
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