Biology, 25.06.2019 04:00 muravyevaarina
Although nitrogen gas makes up 78% of the atmosphere, we can't use it because nitrogen gas is explosive we must absorb it through the soil nitrogen atoms must be broken apart first we must absorb it through the sun
Answers: 2
Biology, 21.06.2019 17:50
What happens when a magniseum ion ia atracked to a chlrene ion
Answers: 1
Biology, 21.06.2019 18:40
The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?
Answers: 1
Biology, 22.06.2019 01:10
Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.active transport involves transport proteins, and facilitated diffusion does not.facilitated diffusion involves transport proteins, and active transport does not.active transport requires the expenditure of cellular energy, and facilitated diffusion does not.
Answers: 1
Biology, 22.06.2019 03:00
What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.
Answers: 2
Although nitrogen gas makes up 78% of the atmosphere, we can't use it because nitrogen gas is explo...
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