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neonofarm [45]
3 years ago
11

What’s the correct answer to number 15 ? Explain why please !!

Biology
1 answer:
dsp733 years ago
5 0

Organelles must do their duties together and their activities must be coordinated I'm pretty sure.

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Sodium chloride breaks down into sodium and chlorine. Why is this process classified as a chemical reaction?
Jlenok [28]

Answer:

C) Is the right answer

Explanation:

chemical reactions occur when a substance is changed into a whole 'nother substance, and cannot be changed back.

how do I know this?

I just learned it today... UwU

I hope this helps!!

3 0
3 years ago
How does nuclear fission produce energy?
mart [117]
The answer should be A. A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
5 0
3 years ago
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Sign an experiment.
expeople1 [14]

The answers to the questions required for the design experiment above are :

  • If shark attack are related to the number of elephant seals in an area, then shark attack will increase as the number of elephant seal increases

  • If shark attack are unrelated to number of elephant seal in an area, then shark attack is unaffected by increase or decrease in number of elephant seal.

  • The Control Group : Beaches or areas where elephant seals aren't present or period of the year when there are no elephant seal at the beach.

  • The Experimental group : Beaches where varibale portions of elephant seals are found (area with high, medium or low).

  • The Dependent variable : Number of shark attacks

  • The Independent variable : The different number of elephant seals found.

  • Data to be collected include : The number and type of elephant seals found at various beaches and the number of shark attacks recorded at the various points.

  • John will be able to deduce if the number of elephant seals and number of shark attacks recorded corded are related.

The hypothesis of an experiment is a proposition which requires experimental testing in other to establish it's validity.

The Control Group refers to a portion of the subject which aren't given or exposed to the treatment used in an experiment.

The Experimental group are the portion of the subjects which are subjected to the treatment condition.

The Dependent variable is the measured variable is changes as the independent variables are tweaked.

Independent variable is the predictor variable, it causes a change in the output of the dependent variable.

Learn more : brainly.com/question/17528320?referrer=searchResults

5 0
2 years ago
Monocots and dicots are two groups of _____.
Step2247 [10]
I believe the correct answer is the second option. Monocots and dicots are two groups of angiosperms. This group of plants are seed bearing plants. Flowers are their reproductive system where the ovules are being enclosed in the ovary. Angiosperms can be found in every habitat from grasslands and forests to deserts and sea margins. Angiospersms are divided to monocots and dicots. Monocot plants are characterized by having one cotyledon while dicots have two. Also, leaf veins of monocots are branched while that of dicots are parallel. The root system of monocots is a fibrous root system while dicots have a taproot system.
3 0
3 years ago
Quantitative analytic methods are needed to determine _____.
Darya [45]
Quantitative analytic methods refer to methods used in analytical chemistry in order to determine the concentration or the moles of a certain substance in solutions. This includes finiding correct units. The most appropriate answer is a quantitative variable and this is the first choice; Quantitative analytic methods can help you determine or estimate the amount of poison in the blood (solvent).
8 0
3 years ago
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