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umka2103 [35]
3 years ago
10

Two main functions of leaves are photosynthesis and____.

Biology
1 answer:
sasho [114]3 years ago
5 0
Gas exchange because each stoma in the leaf can be opened or closed. In the light the guard cells aboard water and become turgid and the stoma opens
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What muscle is commonly injured while sleeping?
wlad13 [49]

Answer:

Explanation:

If you sleep on your back, a pillow that is too thick can strain the curvature of your spine and your neck muscles. If your pillow is too thin, side-sleeping can strain the muscles on the side of your neck

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If we have a plate that has 2500 colonies on it, can we use this plate to calculate CFU's
AleksAgata [21]

No, the solution with bacteria in it needs to be diluted in order to be in the range of 30 – 300.

A colony-forming unit –CFU is used to estimate the number of viable (ability to divide by binary fission) microbes in a sample.  

A sample of microbes is diluted and spread on a plate. Then, the number of colonies is counted, assuming that each colony have grown from a single colony-forming unit, or CFU.

Plates with more than 300 colonies are difficult to count while those with less than 30 colonies give statistically unreliable numbers of colonies to count.

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3 years ago
A deficiency of which amine is responsible for the signs and symptoms of parkinson's disease?
notsponge [240]

A deficiency of dopamine is responsible for the signs and symptoms of Parkinson's disease.

Parkinson's disease is characterized by gradual degeneration of neurons in a section of the brain. In normal conditions, these neurons release a chemical substance known as dopamine which is important for the brain.

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Parkinson’s disease is a disorder generally associated with uncontrollable movements like tremors, rigidity as well as problems linked with maintaining body balance and coordination. Symptoms generally develop slowly and intensify over the period.

People may experience trouble in walking and talking with  the advancement of the disease. The patients may also exhibit mental as well as behavioral alterations, sleep trouble, depression, memory problems and lethargy.

To learn more about Parkinson's disease here

brainly.com/question/13508690

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5 0
1 year ago
A thick mass of tough roots called loess kept the fertile soil of the prairies in place and held on to moisture.
Annette [7]
The answer is f it's not true
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3 years ago
What happens to euglena when sunlight is not present?
Aliun [14]
It absorbs food from the environment.
5 0
3 years ago
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