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BARSIC [14]
3 years ago
6

Why is it important to conduct a controlled experiment? *

Biology
2 answers:
hoa [83]3 years ago
8 0

A controlled experiment is a scientific

test that is directly manipulated by a scientist in order to test a single variable at a time. The variable being tested is the independent variable and is adjusted to see the effects on the system being studied

ehidna [41]3 years ago
7 0

Answer:

Because they allow for precise control of extraneous and independent variables

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Where are protons located?
Studentka2010 [4]

Answer:

B

Explanation:

both the protons and neutrons are located in the nucleus.

I hope this helps

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Levels of organization from small to big
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Sub-atomic particles, Atoms, small molecules, Macro-molecules, molecular assembles, organelle, cell, tissue, organ, organ system, organism, populations of species, species, Community ad Abiotic components, Ecosystem, Biosphere 
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What african animal was nearly made extinct by the demand for its body parts for european leisure products?
Brilliant_brown [7]
I think it might have been the elephant, which is letter b
5 0
3 years ago
A gas has an initial volume of 2.4L at a pressure of 1.5 atm and a temperature 273K. The Pressure of the gas increases to 4.5 at
likoan [24]

Answer:

The answer to your question is  V2 = 0.92 l

Explanation:

Data

Volume 1 = V1 = 2.4 l

Pressure 1 = P1 = 1.5 atm

Temperature 1 = T1 = 273 °C

Volume 2 = V2 = ?

Pressure 2 = 4.5 atm

Temperature 2 = 313 °K

Process

To solve this problem use the Combined gas law

                     P1V1/T1 = P2V2/T2

-Solve for V2

                     V2 = P1V1T2 / T1P2

-Substitution

                     V2 = (1.5 x 2.4 x 313) / (273 x 4.5)

-Simplification

                     V2 = 1126.8 / 1228.5

-Result

                     V2 = 0.92 l

8 0
3 years ago
Select all that apply. Which of the following are current human uses for chordates? food research therapy entertainment affectio
topjm [15]
Chordates are animals that possess certain characteristics including a notochord. Humans fall into this category along with many vertebrates such as whales, falcons etc; therefore, all of the answers apply.
Food, research, therapy, entertainment affection.
8 0
4 years ago
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