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Alla [95]
4 years ago
15

A medical transport helicopter is incoming and you are responsible for setting up the landing zone (lz). you should: select one:

Biology
1 answer:
uranmaximum [27]4 years ago
5 0

Answer: C. Place 4 flares 100 ft. apart in an X pattern.

Explanation: They need something bright so they can see exactly where to go, like colored runways for airplanes.

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Paper chromatography is a technique used to separate molecules based upon their size and solubility in a particular solvent. If
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Answer:

a. Paper chromatography would separate the pigments into several bands that appear green or yellow/orange.

Explanation:

The primary or main pigment in plants is the chlorophyll. The chlorophyll gives plants their characteristics green colour and helps in the absorption of light during photosynthesis.

Other pigments in plants include carotenoid with its characteristic yellow, red or orange colour; anthocyanin with its re/blue colour and betalains with its red/yellow colour.

<em>Hence, if pigments from a particular species of plant are extracted and subjected to paper chromatography, one would expect the pigments to be separated into several colour bands ranging from green to yellow/orange.</em>

The correct option is a.

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3 years ago
10. Which type of homeostatic mechanism is the most common in the human body?
natima [27]

Answer:

Explained below:

Explanation:

Type of homeostatic mechanism in the human body which is most common is the maintenance of body fluids, dilute and solutions of water that carry liquefied chemicals found in internal part of the cell and the surroundings of them. the internal part of the cells, it is named as intracellular fluid, the external part of the cells, it is named as extracellular fluid. All the materials such as oxygen, nutrients, proteins, and ions, are needed for survival.

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3 years ago
A person cannot become a problem drinker by drinking beer.<br> a.true<br> b.false
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False. A person cannot become a problem drinker by drinking beer.
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In a controlled enviroment the varible that is change is called
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The independent variable is the one variable you manipulate in the experiment

The dependent variable (or responding variable) changes as a result of the independent variable  
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3 years ago
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