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BaLLatris [955]
3 years ago
11

Why do scientists use comparisons between fossils and existing species to classify organisms?.

Biology
1 answer:
Alex3 years ago
4 0
Scientists use similarities between organisms to connect them. The similarities and contrasts between fossils discovered in sedimentary rock and living species can be compared.
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An operon is controlled by a repressor. When the repressor binds to a small molecule, it binds to DNA near the operon. The opero
larisa [96]

Answer:

Negatively repressible.

Explanation:

A control which occurs through repressor is known as negative control which may be inducible or repressible.

When a small molecule named as allolactose binds this repressor it leads to allosteric repulsion which removes repressor from the operator as a result of which RNA polymerase can start transcription. Allolactose is therefore known as inducer because it induces lac operon expression.

But here, the operator is active (induced) already so there is no need to induce the operon which means that it can only be repressed so that transcription could stop. So the answer is negatively repressible operon.

6 0
3 years ago
Which rock is comprised of mostly carbon, as well as, sulfur, hydrogen, oxygen, nitrogen, and ash?
Agata [3.3K]

The correct answer is: B) coal.

Coal is a sedimentary rock black or brown color composed of carbon with variable amounts of other elements such as hydrogen, sulfur, oxygen, and nitrogen. The formation of coal goes through two steps: decay of dead plant matter into peat and conversion of peat into coal under the influence of heat and pressure of deep burial.

6 0
3 years ago
Which of the following correctly describes connective tissue
Helen [10]

Answer:

There are no multiple choices

6 0
3 years ago
The cross-fertilization of two different, but true-breeding, varieties of pea plants will _____.
Tresset [83]

Answer: Result in Hybrid Plants

Explanation:

The cross-fertilization of two different, but true-breeding, varieties of pea plants will <u>result in hybrid plants</u>.

3 0
3 years ago
Predict how results would change if the field were watered daily. A. Nothing would change. B. All the plants would increase in n
iragen [17]

Answer: B

Explanation:

I'm not sure, but I'd say that the best answer choice would be B because most of the plants would grow, and none would die off. The smaller plants would grow, and would grow in, and most if not all of the larger would just continue to grow, if they aren't already full grown.

Hope this helped!

6 0
3 years ago
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