The statement that is an example of part of a scientific theory statement that carbon is matter and cannot be created or destroyed (option A).
<h3>What is scientific theory?</h3>
Scientific theory is a coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or phenomena not previously observed, or which sets out the laws and principles of something known or observed.
A scientific theory can be said to be an hypothesis confirmed by observation or experiment.
Therefore, the statement that is an example of part of a scientific theory statement that carbon is matter and cannot be created or destroyed because it is an established fact.
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Attached is an image that wherein the question is being referred from.
There are choices for this question namely:
A- gravity increased the downward flow of the trapped water
B- metabolism of the elodea plants absorbed CO2 from the water
C- heat from the light source caused the escape of dissolved gas
<span>D- light caused the elodea plants to photosynthesize, releasing O2 gas
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The correct answer is that
light caused the Elodea plants to photosynthesize, releasing O2 gas. Choice A is not true as if gravity increased the downward flow of the water, then the model without light should have air accumulated in the test tube too. In Choice B, while it is true that the plant may have absorbed the dissolved CO2 in water, this does not explain why there is gas on top of the test tube. Choice C may only evaporate the water, not cause the escape of dissolved gases. In choice D, however, light caused the Elodea plants to perform photosynthesis releasing O2 gas compared to the other model without light wherein the plant cannot perform photosynthesis thereby not releasing O2 gas therefore no gas is seen on top of the test tube.
Answer: In the control room!
Explanation:
False. Strontium 90 has a half life of only 30 years, and as millions of years pass, about the time fossils have been around, most if not all of any strontium would have decayed.
Answer:
1.
Red = rr
Blue = bb
Purple = rb
2.
a) Genotype - rb
Phenotype - purple
b) 0%
c) 100%
d) 0%
3.
a) Genotypes - rr, rb, bb
Phenotypes - red, purple, blue
b) 25%
c) 50%
d) 25%
4.
a) Genotypes - rb, bb
Phenotypes: purple, blue
b)
50 purple
50 blue
0 red