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Aleonysh [2.5K]
3 years ago
7

When we learned about science in context, we learned testing ideas is the heart of science and they go through a specific cycle

that allow for ideas to be effectively tested. What are the 3 ways a scientist test ideas? Select all that apply.
A. exploration and discovery
B. benefits and outcomes
C. articles and theories
D. community analysis and feedback
Biology
1 answer:
bagirrra123 [75]3 years ago
6 0

Answer:

the answer to that question is D

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How does the human body lever work?
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The whole human body is a lever system, that's how muscle work. Your joins are the fulcrum, your muscle contracts and hence is the effort. On the other side, whatever you're holding and the weight of your hand is the load. There are all 3 classes of lever system in your body.

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The most important factor(s) which limit(s) the number of animals that can live in a biome is/are:
Molodets [167]

The most important factor(s) which limit the number of animals that can live in a biome is/are:

A. types of plants

B. quantity of plants

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7 0
3 years ago
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What conclusions can be drawn about the existence of carbon-12, carbon-13, and carbon-14? A) These are forms of carbon and they
Kryger [21]

Answer:

C.

Explanation:

All these carbon atoms are isotopes: they have the same amount of protons (in this case, 6 because carbon always has 6 protons) and the same amount of electrons (6 because the carbons given have a neutral charge).

Therefore, the only thing we are changing is the atomic mass and the amount of neutrons present in each isotope.

In Carbon-12, there are 6 protons, 6 neutrons, and 6 electrons.

In Carbon-13, there are 6 protons, 7 neutrons, and 6 electrons.

In Carbon-14, there are 6 protons, 8 neutrons, and 6 electrons.

5 0
3 years ago
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An elements atomic number is 62. how many protons would an atom of this element have
coldgirl [10]
The atomic number is<span> </span>equal<span> to the number of protons. The atom has 62 protons.</span>
3 0
3 years ago
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13)
Julli [10]

Multiply 5730 years by 2 since two half-lives have gone by for carbon.

<u>Explanation</u>:

The half-life of a radioactive isotope depicts the measure of time that it takes half of the isotope in an example decay. On account of radiocarbon dating, the half-existence of carbon 14 is 5,730 years  

The half-life of carbon-14 is 5730 years.  

In this manner, after  

1 half-life there is 50 % = 1/2 of the first amount left.  

2 half-lives there is 25 % = 1/4 of the first amount left.  

25% is two half-lives.  

Every 50% of life requires 5730 years.  

So two half-lives require 2 × 5730

6 0
3 years ago
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