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e-lub [12.9K]
3 years ago
8

A fish fossil is found in a rock. A foot bone and tooth are found in an older layer of the same rock. What can scientists learn

from the rock?
A) The area changed from land to water.
B) The area changed from water to land.
C) The area has always been land.
D) The area was once an ocean.
Biology
1 answer:
sesenic [268]3 years ago
4 0
A. land to water is the answer.
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An experiment was carried out by Latecia for investigation of the gas production of a water plant. It's therefore expected that OXYGEN gas which is the by-product given off during photosynthesis in green plants would be collected from the upside down beaker as gas bubbles.

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6 0
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Which chemical or chemicals inhibit the activity of dnases during dna isolation?
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