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Lisa [10]
2 years ago
8

A student wants to compare the amounts of CO2 given off by yeast provided with different amounts of sugar. The student places a

balloon over each container to catch the released CO2. Which observation is a qualitative observation the student can make? O A. A description of the shape of each balloon B. A measurement of the approximate size of each balloon C. A measurement of the circumference of each balloon D. A visual count of individual CO2 molecules in each balloon PREVIOUS​
Biology
2 answers:
nata0808 [166]2 years ago
6 0

Answer:

The weight of each filled balloon

Explanation:

hmu if you need more help

Andreyy892 years ago
5 0

Answer:

The answer is letter (A): A description of the shape of each balloon

Explanation:

Qualitative observations are descriptions and not measurements or countings. For example, the shape of the balloon is a quality unlike the measurements of circunference, size or amount of molecules.

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With the endosymbiotic hypothesis in mind, what structure within modern-day chloroplasts is likely derived from the cytoplasm of
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Inner membrane of the chloroplasts

Explanation:

The present day eukayrotes are all considered to be derived from its original ancestor – the cyanobacteria.

Earlier, photosynthesis by the first photoautotrophs took place utilizing hydrogen sulphide as the electron donor. However, it was later when the cyanobacteria, which were originally residing in the mitochondria of an eukaryotic cell under an endosymbiotic relationship, developed into true chloroplasts, the use of water as electron donor to perform photosynthesis began.  

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Plants use carbohydrates to build things such as cellulose. How do plants acquire these building blocks to build mass?
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<span>In order to obtain the building blocks for larger carbohydrates, such as cellulose and starch, plants rely on photosynthesis to produce a smaller carbohydrate, glucose. During the process of photosynthesis, atmospheric carbon dioxide and water are combined in the presence of light to produce glucose and oxygen. This glucose is then polyemerized in order to create larger, more complex carbohydrates such as cellulose.</span>
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2 years ago
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A scientist grows tomatoes in greenhouses that differ only in the amount of carbon dioxide in the air. He determines the weight
Leno4ka [110]

Answer:

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Explanation:

The definition of a controlled experiment is a test where the person conducting the test only changes one variable at a time in order to isolate the results. An experiment where all subjects involved in the experiment are treated exactly the same except for one deviation is an example of a control experiment.

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Answer:

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