Biology, 19.09.2019 16:30 hollycoleman13
Which of the following will be the final stage in the sun’s life cycle?
a. nova stage
b. red giant stage
c. planetary nebula stage
d. black dwarf stage
Answers: 2
Biology, 21.06.2019 17:50
Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting
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, 21.06.2019 19:30
Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.
Answers: 2
Biology, 22.06.2019 03:50
2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms
Answers: 2
Which of the following will be the final stage in the sun’s life cycle?
a. nova stage
...
a. nova stage
...
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