Plants produce all of the molecules they need for survival from inorganic compounds. some elements, like nitrogen, come from the soil. where do the elements required for photosynthesis come from?
a oxygen and carbon from the atmosphere
b hydrogen and carbon dioxide from the atmosphere
c carbon from the atmosphere, hydrogen and oxygen from water
d hydrogen and oxygen from water, carbon from carbohydrates
Answers: 2
Biology, 22.06.2019 00:30, stgitskaysie9028
Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?
Answers: 1
Biology, 22.06.2019 05:30, angelesramos112
One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing
Answers: 3
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