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Anuta_ua [19.1K]
3 years ago
15

What is the relationship between light and depth?

Biology
1 answer:
tiny-mole [99]3 years ago
4 0

If we take the example of sun and water (sea or ocean).

Light from the sun is attenuated by the atmosphere before reaching the surface of the water; underwater, the attenuation is considerable, infrared is absorbed in the first meter and light reaches 100 meters. Beyond 1000 meters is the dark night.

As in all environments, two phenomena contribute to the attenuation of light: Absoption and diffusion.

The absoption of light in the sea is the absorption of photon energy by energy level transition of the atoms and molecules that make up seawater.

Light scattering is a physical phenomenon that occurs when optical inhomogeneities of the medium cause random changes in the direction of the light rays.

The attenuation of light under water is mainly due to absorption, the diffusion being of less importance.

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What do intensity maps do and why are they important
Wittaler [7]
In seismology, an isoseismal map<span> is used to show lines of equal felt seismic </span><span>intensity, it is important since it shows us the severity of an earthquake.</span>
6 0
3 years ago
What is the volume of 150 grams of lead if it has a density of 11.3 g/cm??
cupoosta [38]

Answer:

Volume of lead is 13.3cm3

Explanation:

Density is mass of a substance divided by volume.

The density of lead = mass÷ volume.

Mass is 150 grams.

Density is 11.3g/cm

11.3=150/volume.

Volume=150/11.3

Volume=13.3cm3.

4 0
3 years ago
How does adaptation affect the survival of a species? Why?
sveticcg [70]
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6 0
3 years ago
If a bacteria is positive for the enzyme urease and is inoculated in a urea reduction broth tube at 37∘C for 24 hrs, what color
Vedmedyk [2.9K]

Answer:

The color would be Pink

Explanation:

According to the question, the bacteria is positive for the enzyme urease and it's inoculated for 24 hours.

Urease broth is a differential medium that tests the ability of an organism to produce urease, that hydrolyzes urea to ammonia and carbon dioxide. The broth contains two pH buffers, urea, a very small amount of nutrients for the bacteria, and the pH indicator phenol red. Phenol red turns yellow in an acidic environment and fuchsia in an alkaline environment.

If the urea in the broth is degraded and ammonia is produced, an alkaline environment is created, and the media turns pink within 24 hours.

Many enterics can hydrolyze urea; but only a few can degrade urea rapidly. These are called “rapid urease-positive” organisms.

Urea broth is formulated to test for rapid urease-positive organisms. The restrictive amount of nutrients coupled with the use of pH buffers prevent all but rapid urease-positive organisms from producing enough ammonia to turn the phenol red pink.

4 0
3 years ago
Which cell letter from the graphic organizer matches the fungus structure that releases digestive enzymes and absorbs digested o
lesantik [10]

Answer:

hypha and rhizoids

Explanation:

most of the fungi are saprotroph. They secretes digestive enzymes from hypha of the mycelium on the dead and decaying matter. Digestive enzymes digest complex organic materials into simpler and soluble form in the external medium. With the help of a root-like structure called rhizoids absorb nutrients from external medium into their body.

5 0
4 years ago
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