Biology, 13.12.2019 12:31 changav36832
From where did the carbon in all living things come?
a. it was made during the big bang.
b. it was made in stars that lived before the solar system formed.
c. it was made in the formation of the solar system.
d. it was produced by cyanobacteria.
hurry! ! nvm. no one answered quickly enough. it was b.
Answers: 2
Biology, 21.06.2019 22:20
Which of the following is a way that minerals are used? a. industry construction technology d. all of the above
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Biology, 22.06.2019 02:30
Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.
Answers: 1
Biology, 22.06.2019 03:30
Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?
Answers: 3
From where did the carbon in all living things come?
a. it was made during the big bang....
a. it was made during the big bang....
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