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DanielleElmas [232]
3 years ago
13

Which of the following is not an example of separation by physical means?

Biology
2 answers:
yaroslaw [1]3 years ago
8 0
Evaporation is not an example of separation by physical means.
Alina [70]3 years ago
3 0
C) Electrolysis <span> 

WHY?

</span><span>electrolysis is a method of using an electric current to drive an otherwise non-spontaneous chemical reaction. Electrolysis is commercially highly important as a stage in the separation of elements from naturally-occurring sources such as ores using an electrolytic cell.</span><span>


**Sorry if wrong tried my best X3*

</span>
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Which of these bests explains the difference between the way animals and plants exchange gases with their environments?
Marizza181 [45]
Answer: Animals use only respiration, while plants use both photosynthesis and respiration.
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3 years ago
Pyruvate is a direct precursor of anapleurotic reactions which produce which intermediates of the tca cycle?
Virty [35]

The correct answer is:  oxaloacetate

Anaplerotic reactions are chemical reactions that form intermediates that can be used in the further steps of metabolic pathways. These reactions are very important, because it is crucial for the cell to regulate concentrations of TCA cycle metabolites and intermediates.

The reaction in which pyruvate is converted to oxaloacetate is catalyzed by pyruvate carboxylase and it occurs in mitochondria. Also, pyruvate can be converted to L-malate, in a similar way.

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3 years ago
Carbohydrates are organic compounds containing chemical bonds used to power cellular processes. Sources of carbohydrates include
Nina [5.8K]

Answer:

Bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks and corn etc.

Explanation:

Bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks and corn etc are the main sources of carbohydrates. In these foods, carbohydrates are present in large amount which is a quick source of energy for us. The breakdown of carbohydrates starts from the mouth when the food mixes with saliva which contains an enzyme that starts breakdown of carbohydrates into micromolecules is called glucose that can be absorbed by our body for the production of ATP molecules.

7 0
3 years ago
Round seeds (R) are dominant to wrinkled seeds (r), and yellow seeds (Y) are dominant to green seeds (y). A plant of unknown gen
hammer [34]

Answer:

<h2>RrYy and rryy </h2>

Explanation:

1. As given; Round seeds (R)  are dominant on wrinkled seeds (r),

Yellow seeds (Y) are dominant on green seeds (g).

In a testcross, between an unknown genotype and a homozygous recessive with wrinkled and green seeds (rryy).

offspring are:  

Round and yellow are  53; genotype (R_Y_)

round and green are  49;  genotype (R_yy)  

wrinkle and yellow are 44;  genotype (rrY_)

wrinkled and green are  51 ; genotype  (rryy)

Here, the genotype of parents of these offspring would be RrYy and rryy.

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3 years ago
Please help 20 points and brainliest.
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What are the questions that go with the model?
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