Which change is chemical?(1 point)
water undergoing electrolysis
water boiling
water ev...
Which change is chemical?(1 point)
water undergoing electrolysis
water boiling
water evaporating
water freezing
Which number remains unchanged during photosynthesis?(1 point)
the number of glucose molecules
the number of carbon dioxide molecules
the number of carbon atoms
the number of water molecules
In a chemical reaction, which aspect of the reactants changes?(1 point)
atoms
total mass
mass
nuclei
A young snake eats and digests a mouse. The increase in the snake’s mass equals(1 point)
the mass of the mouse minus the mass of waste produced by the snake.
the mass of the mouse plus the mass of waste produced by the snake.
the mass of the mouse.
the mass of the mouse plus the original mass of the snake.
Cellular respiration transforms glucose and oxygen into carbon dioxide, water, and energy.
C6H12O6 + 6O2 → 6CO2 + ?H2O + Energy
Based on the law of conservation of matter, what is the missing coefficient for water?
(1 point)
2
4
6
8
Answers: 2
Biology, 22.06.2019 00:00
Question 1 of 102 pointswhich best describes adaptive radiation? oa. geographical isolation caused by an adaptationob. biodiversity resulting from few ancestorsoc. a decrease in the rate of speciationd. adaptations that organisms teach each other
Answers: 2
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Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?
Answers: 2
Biology, 22.06.2019 07:00
Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.
Answers: 2
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