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goldenfox [79]
4 years ago
6

Prevalent among U.S. Southerners during the early 1900s, pellagra was first thought to be an infectious disease. Today we know t

hat it is caused by a deficiency of _____
Biology
1 answer:
sesenic [268]4 years ago
5 0

Answer:

iron i think

Explanation:

Sometimes when your iron gets low you you devolp a sickness

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Your body has different kinds of cells. Though they might look different under a microscope, most cells have chemical and structural features in common. In humans there are about 200 different types of cells and within this cells there are about 20 different types of structures or organelles.

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A food web illustrates a squirrel eating a nut. What is the role of the squirrel in the food web
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my brain

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On topographic maps, how does the spacing of contour lines relate to continental and ocean-floor topography? A. For both contine
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For both continental and ocean-floor topography, gentler slopes are represented by widely spaced lines while steeper slopes are represented by closely spaced lines.

Explanation:

The contour lines are one of the main, and one of the most used methods on the maps for representing the topography. Basically, the contour lines are closed lines that connect dots on the same elevation. It may sound very simple, but they do provide good insight into the topography, especially if the reader of the map knows how to interpret them well.

The contour lines are used both for continental and ocean-floor topography. The rules are the same for both, including the representation of the slopes. When a slope is gentler, the contour lines are more widely spaced. When a slope is steeper, the contour lines are much more closely spaced.

Some elements of the contour lines or that go with them to give better representation are:

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Learn more about contour lines brainly.com/question/1972242

#learnwithBrainly

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3 years ago
What are the waste products of the kidneys​
Allushta [10]

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