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charle [14.2K]
2 years ago
7

Darker skin produces more what than lighter skin

Biology
2 answers:
vampirchik [111]2 years ago
8 0
Your what is ,
melanin

Bogdan [553]2 years ago
7 0
Melanin...this is why the blacks can't get sunburnt easily.
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Which words from the article help the reader to understand the importance of a special habitat?
Sliva [168]

Answer:

A habitat meets all the environmental conditions an organism needs to survive. For an animal, that means everything it needs to find and gather food, select a mate, and successfully reproduce. For a plant, a good habitat must provide the right combination of light, air, water, and soil.Jan 21, 2011

hope work

Explanation:

8 0
2 years ago
Ringing in the ears is called:
Elza [17]

Answer:

c. tinnitus

Explanation:

Tinnitus (a hearing impairment) is a form of  hearing of sound when no external sound is present Which is often described as a Ringing,Tinnitus may also sound like a clicking or roaring. i.e usually unclear voices or music are heard. The sound may be soft or loud, low or high pitched, and appear to be coming from one or both ears. Ranging from one person to another, the sound may causes depression or anxiety and can interfere with concentration.

Otitis externa is a condition that causes inflammation , the inflammation also covers  (redness and swelling) of the external ear canal, i.e the tube between the outer ear and eardrum.

Meniere's disease popularly called (MD), is a disorder of the inner ear that is characterized by episodes of feeling like the world is spinning (vertigo), hearing loss, and a fullness in the  ear. The cause of MD involves both genetic and environmental factors. Some of the factors include constrictions in blood vessels, viral infections, and autoimmune reactions.

Otosclerosis is a condition where one or more foci of irregularly laid spongy bone replace part of normally dense enchondral layer of bony otic capsule in the bony labyrinth. This condition affects one of the ossicles (the stapes) resulting in hearing loss, vertigo or a combination of symptoms.

Therefore from the foregoing we can conclude that Tinnitus is the correct anwser.

4 0
3 years ago
Read 2 more answers
Describe the contributions of Hutton and Lyell.please explain
morpeh [17]
Hutton: created the idea that a (water erosion basically)continuing process formed and destroyed the rocks and soils of the Earth and that the process was a never ending loop. 
Hutton laid the conceptual foundation for uniformitarianism geology

Lyell: added names and ages to the different layers of rocks
Lyell built the structure of geology upon that foundation
8 0
3 years ago
A heat wave that causes an organism to move to a cooler climate is an example of a(n)
Bezzdna [24]
It is d. If it was adaptation, the organism would have stayed in order to adapt. The species moved in order to not go extinct. It can not be speciation, because a new species was not made. It is stimulus. It experienced too much heat, so it left.
5 0
2 years ago
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which statements are true of heterogeneous mixtures? 1) they settle out. 2) the proportions of solute to solvent may vary. 3) th
Sindrei [870]
The statements that are true of heterogeneous mixtures are: they settle out and the proportions of solute to solvent may vary. The correct answer is option A. 1 and 2. Heterogeneous mixtures are considered mixtures wherein the components are not uniform and still retain their properties. Characteristics of heterogeneous mixtures are: the ratio of solute and solvent is not equal, the substances can be separated physically and they still retain their properties even if mixed with another substance. 
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2 years ago
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