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SIZIF [17.4K]
3 years ago
13

In this lab, biology students were directed to use indicators as chemical detection tools, to analyze a variety of foods for the

presence of carbohydrates, lipids or proteins. One group was responsible for testing for the presence of sugars and starches in the food they ate at lunch. Which test result below shows the presence of starch in their food?
Biology
2 answers:
sp2606 [1]3 years ago
6 0

In order to test the presence of starch, one has to treat with iodine. If the food turns blue-black in color, it is an indication of the presence of the starch.

Alex Ar [27]3 years ago
4 0

Answer:

Biuret!

Explanation:

I had this question on USA Test Prep and the correct answer choice was Biuret

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Chuck Wildlee, a baseball pitcher, was struck on the head by a line drive hit by Charley Hussel. Fortunately, Chuck was not seri
enot [183]

Answer:

Option C, he lost both sensory and short-term memory

Explanation:

Sensory memory is basically the information received by the five sense organs and also the instruction given by brain to the respective sense organ.  

This sensory memory keeps  storing and is collectively referred to as short term memory.  

Since Chuck Wildlee was unable to remember how many balls and strikes the batter had. In past he would have perceived this information through eyes which should have been part of sensory memory and later the part of short term memory.  

Thus, it can be said that Chuck Wildlee lost both his sensory memory and short term memory  

Hence, option C is correct

4 0
3 years ago
Help!! I'm doing a lab report and am unsure which variables are independent, dependent, and controlled. My lab is due tomorrow
victus00 [196]

Im not sure but if you think of it, the one that you didn't put any salt is a independent  variable because it doesn't really rely on anything it doesn't have salt. The Dependent variable would be the 2nd and the 3rd cup because it doesn't have much salt but the 4th cup has lots of salt so its basically controlled. Hope it helps !

8 0
3 years ago
Please help
lilavasa [31]

Answer:

D. the genetic material of living organisms

Explanation:

6 0
3 years ago
Which cell part converts food into energy that is usable by a cell?
Lisa [10]
A mitochondria converts glucose to energy
7 0
3 years ago
Read 2 more answers
The bohr model of the atom stated that the energy of an electron was quantized and therefore electrons could only exist in certa
rjkz [21]

Explanation:

Bohr model is able to explain the electromagnetic spectrum produced by different atoms of different elements. This is because an electron around the nucleus of an atom occupies distinct orbital levels around the nucleus and not in between. When an electron absorbs a specific wavelength of electromagnetic spectrum it 'hops' to an upper electron energy level equivalent to this wavelength of radiation. When the atom 'hops' to a lower orbital level it releases ta specific wavelength of radiation that is equivalent to the difference in the energy levels. This was unaccounted for in the Rutherford's planetary model.

The electron cloud model is thought to be an improvement on the Bohr model because it accounts for the Heisenberg Uncertainty Principle which stipulates that it is impossible to ascertain the momentum and location of an electron at the same time (because merely viewing an electron using light -or any kind of radiation - will change its direction and velocity). This model explains the likely position of an electron using probabilistic equations. The electron cloud model can therefore be used to explain bonding between atoms.

Learn More:

For more on atomic theories check out;

brainly.com/question/12412328

brainly.com/question/12083113

#LearnWithBrainly

3 0
3 years ago
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