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ICE Princess25 [194]
3 years ago
8

What has the study of fossils helped scientists to do

Biology
1 answer:
marishachu [46]3 years ago
4 0
The remains of fossils give scientists clues as to what the world may have been like a long tome ago. If fish fossils are found on the side of a mountain, there may have been a lake there. If a skeleton is found, they can decide what creature it was.
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3 years ago
The processes of transformation and transduction are important to which kingdom and why?
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6 0
3 years ago
Janet installed a dimmer on the lights in her bedroom. She slid the dimmer switch, causing the resistance in the circuit to
Anton [14]

Answer: The correct answers are option(b) and(d).

Explanation:

When the lamp was dimmer  the resistance offered by the lamp was more which just resist the flow current from the circuit.

V=RI (Ohm's Law)

When the Janet decrease the resistance to (R') by sliding the dimmer switch (voltage remained constant). On decreasing the resistance the flow of current in circuit will increase by which light of the lamp will become brighter.

Hence, from the enlisted options the correct options option(b) and(d).

4 0
3 years ago
Read 2 more answers
Which of the following is not an essential role of the liver? Which of the following is not an essential role of the liver? prot
True [87]

Answer: urea disposal

Explanation:

<u>The liver, which is the largest organ in the human body, performs three vital functions of the organism: detoxification, synthesis and storage. </u>

The liver acts as an authentic filter that collects and eliminates numerous toxins, such as ammonia, or toxins that we ingest, such as alcohol (it performs a biotransformation of toxins). Our liver is also responsible for the metabolism of carbohydrates, lipids and proteins, secreting bile, an essential element for the digestion. It also prevents bleeding through a coagulation process. And it is a container of vitamins (A, D, E, K) and glycogen (carbohydrates), while energy is stored in the form of sugar, made available to our organization.

The urea cycle takes place primarily in the liver. Organisms convert ammonia to a less toxic substance, such as urea, via the urea cycle. <u>Then it is released into the bloodstream where it travels to the kidneys and is ultimately excreted in urine. </u>

So, the liver is involved in the production of urea, but the kidney is responsible of its disposal.

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3 years ago
When one DNA molecule is replicated, the result is two DNA molecules. What is true of the second DNA molecule?
soldi70 [24.7K]
<span>It is identical or nearly identical to the first DNA molecule.</span>
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3 years ago
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