How do scientists know that the universe is expanding?
The Doppler effect shows stars with yel...
Biology, 23.04.2020 07:02 aksambo4707
How do scientists know that the universe is expanding?
The Doppler effect shows stars with yellow shifted light
The Doppler effect shows stars with green shifted light
The Doppler effect shows stars with red shifted light
The Doppler effect shows stars with blue shifted light
Answers: 3
Biology, 22.06.2019 03:00
Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.
Answers: 2
Biology, 22.06.2019 03:50
Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.
Answers: 1
Biology, 22.06.2019 10:40
Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above
Answers: 1
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