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algol [13]
3 years ago
9

A food desert is a location where:

Biology
1 answer:
Alchen [17]3 years ago
6 0

Answer:

The correct answer is option D.

Explanation:

A food desert is a geographic area that has limited access or nonexistence of the healthy and affordable foods for the residents or organisms of a particular geographic area.

It can be due to various reasons depending on the area this phenomenon occurs such as in remote areas the absence of grocery stores in a reachable distance.

Thus, the correct answer is option D.

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When analyzing three genes that reside on the same chromosome, the expected frequency of double-crossover events can be determin
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Answer:

The answer is positive interference

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Which would be considered a result of human activity that contributes to the loss of plants and animals on earth
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Through which microscope were cells first observed?
poizon [28]

Compound microscope

<h3>Further explanation</h3>

In 1665, Robert Hooke used a compound microscope to observe cells. Hooke observes the cell walls of dead plants (in the form of cork) when they appear under a microscope. He named it the cell because it looked similar to a cellula or small room inhabited by monks.

Development of microscopy:

  • 1590: Hans and Zacharias Janssen, as Dutch lens grinders, mounted two lenses in a tube to produce the first compound microscope.
  • 1660: Robert Hooke published <em>Micrographia</em>, containing detailed observations of biological materials made with the best compound microscope.
  • 1676: Anton van Leeuwenhoek was the first person to observe a live cell under a microscope, i.e., the algae Spirogyra.
  • 1931: Ernst Ruska constructed the first electron microscope. With the invention of the electron microscope, many infectious agents smaller than bacteria could be seen.

Until now, we can see how important the use of microscopes, especially in microbiology, that is the study of microorganisms.

<h3>Learn more</h3>
  1. How was the water filtered to remove debris and living organisms?  brainly.com/question/5646770
  2. About the single bonds in fatty acids brainly.com/question/1386856
  3. The theoretical density of platinum which has the FCC crystal structure. brainly.com/question/5048216

Keywords: compound microscope, Robert Hooke, cells first observed, cork, dead plant, walls, Anton van Leeuwenhoek

3 0
3 years ago
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Create a phylogenetic tree with the following animals: human, chip, gorilla, orangutan, (hint you might have to research DNA dif
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Answer:

 The phylogenetic tree can be shown in the attachment.

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A phylogenetic tree can be described as a diagram which depicts evolutionary histories among organisms of different species. The organisms which are more closely related are more closer to one another in a phylogenetic tree.

Human, chip, gorilla, orangutan all are greater apes whose complete DNA have been sequenced. The sequencing of their genomes showed that humans have the closest relationship with chimpanzees. Hence, scientists believe that humans might have evolved from the chimpanzees.

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What is an abiotic factor in a tropical rain forest?
alexandr1967 [171]
The correct answer is:  [C]:  "the rain" .
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