Biology, 25.03.2021 20:10 oliviavaughan01
A science class takes a field trip to a rock formation known for the many fossils it holds. A student finds a fossil that shows a plant with leaves that look like those of a plant that grows nearby. The student tells his classmates that the plant fossil must be from an ancient species that has not changed much over time. Which statement BEST describes the student’s claim?
1) The claim is reasonable because plants do not change over time.
2) The claim is reasonable because fossils often show similarities between extinct and similar modern species.
3)The claim is not reasonable because plants must change over time.
4)The claim is not reasonable because fossils can be made from recently living organisms.
Answers: 1
Biology, 22.06.2019 09:30
You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.
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Biology, 22.06.2019 10:00
Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area
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Biology, 22.06.2019 10:00
In which squares should the phrase "green pods" appear a) a and d b) b and e c)a,c, and d d)a,b,c,d and e
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A science class takes a field trip to a rock formation known for the many fossils it holds. A studen...
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