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2 years ago

In each trial, you will add an indicator to the

Biology

1 answer:

telo118 [61]2 years ago

6 0

Answer:

The correct answer is -

- to match the mystery food sample to a definite positive result (gelatin, oil.)

- to match the mystery food sample to a definite negative result (water)

Explanation:

Adding an indicator or any indicator to an unknown food sample or any sample and then adding the same indicator to the known sample is necessary to check and confirm the positive result and negative result that will help to match with the experiment result.

For positive result adding an indicator to get a definite positive result to mystery food for example gelatin or oil. Similarly for a definite negative result adding it to known food or water.

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All organisms undergo glycolysis. The final product of glycolysis is pyruvate, a 3-carbon molecule. When will pyruvate undergo f

Naddik [55]

Answer:

The correct answer is given below:

Explanation:

Depending upon the availability of oxygen, pyruvic acid follows, a variety of metabolic pathways.

In the absence of oxygen or under anaerobic conditions, the pyruvic acid further metabolised into one of three pathways: lactic acid fermentation, alcohol fermentation and cellular anaerobic respiration. During fermentation or anaerobic respiration 2 ATP is produced.

In the presence of oxygen or under aerobic conditions, the pyruvic acid completely oxidised to carbon dioxide, water and 38 ATP.

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2 years ago

Phloem _____.

Anettt [7]

Answer:the phloem transports food and nutrient

Explanation:

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What the function if animal cell divide without centrioles?

Vesna [10]

Answer:

spindle fibers act as guides for the alignment of the chromosomes as they separate later during the process of cell division.

Explanation:

They play a role in mitosis of animal cells and plant cells are able to reproduce without them.

Research however has shown that mitosis can take place in animal cells after centrioles have been destroyed. ... In higher plants mitosis takes place perfectly satisfactorily with microtubules forming spindle fibres but without the help of centrioles.

Hope this helpse!! Brainliest?? Anyways have a great day my loves<3

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2 years ago

How does the theory of endosymbiosis differ from the autogenous and horizontal gene transfer theories in explaining the evolutio

Llana [10]

<h3>Answer and Explanation;</h3>

Endosymbiotic theory explains the origin of chloroplasts and mitochondria and their double membrane. Mitochondria of eukaryotes evolved from aerobic bacteria living within their host cell and the chloroplasts of eukaryotes evolved from endosymbiotic cyanobacteria.
On the other hand according to the autogenous hypothesis, mitochondria and chloroplasts have evolved within the protoeukaryote cell by compartmentalizing plasmids or vesicles of DNA within a pinched off invagination of the cell membrane.

Endosymbiont theory is the theory that suggests that simple prokaryotic cells were engulfed by larger prokaryotes 1.5 billion years ago.
Autogenous theory is a theory that was proposed as an alternative to endosymbiont theory. proposes that eukaryotic organelles formed by infolding of the plasma membrane.
Horizontal gene transfer theory is an alternative to endosymbiont and autogenous theories for the origin of complex organelles in eukaryotes.

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2 years ago

A study comes out that says that eating sugar

Troyanec [42]

C is the correct answer

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2 years ago