Biology, 29.10.2020 03:00 lildeb2778
25 POINTS HELP
... Select the correct answer from each drop-down menu. Complete the sentences to explain how photosynthetic organisms changed our lives on Earth.
The 1(carbon dioxide) 2(oxygen) 3(water vapor) 4(nitrogen) in the atmosphere that all living beings depend on was generated by cyanobacteria during the Archaean and Proterozoic eras. The presence of this substance is what makes 1(the water cycle) 2(visability) 3(photosynthesis) 4(combustion) possible on Earth.
Answers: 2
Biology, 22.06.2019 09:00
Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land
Answers: 3
Biology, 22.06.2019 13:00
Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.
Answers: 3
Biology, 22.06.2019 16:00
Hydroelectric uses moving water to do work such as grinding grains in a mill true or false
Answers: 1
Biology, 22.06.2019 22:00
Which of the following molecules will diffuse most quickly across a lipid bilayer membrane? a. h2o b. o2 c. h2po4 d. glucose e. na+
Answers: 1
25 POINTS HELP
... Select the correct answer from each drop-down menu. Complete the sentences to ex...
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