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Montano1993 [528]
3 years ago
10

The ordinary light microscope is called a bright-field microscope because _____.

Biology
2 answers:
Lapatulllka [165]3 years ago
6 0
A single light is made of
Zigmanuir [339]3 years ago
5 0

Answer:

The correct answer is option 2-the object appears dark on a light background.

Explanation:

Bright-field microscopy is the elementary or simple form of microscope used with compound microscopes. This is called a "brightfield" microscope because the specimen appears dark and contrasted in the bright light field.

For this specimen is placed on the stage of the microscope light source is then focused at the specimen. The condenser focuses the light on the specimen with the help of an aperture diaphragm. Light passes through the specimen which is collected by an objective lens which magnifies the light and transmits it to an eyepiece and to user's eyes. Some light is absorbed by dense areas, stains and pigments making specimen appear dark in bright light.

Thus, option 2-the object appears dark on a light is the correct answer.

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Even though the limbs are used for different purposes, all the organisms show a similar arrangement What does this evidence tell
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Answer:

It tells us that homologous structure is evidence of common ancestry

Explanation:

<em>Homology is the similarity of organs of different organisms even though they perform different functions in the organisms. Organs that are built on a similar plan but perform different functions are known as homologous organs. </em>

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The rounded superior portion of the uterus that lies between the uterine tubes is called the?
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The uterus is the most important hormonally sensitive organ of the female reproductive system in humans and most other animals. The upper region of the uterus, which is above where the fallopian tubes are, is referred to as the "fundus." The region between the corpus and the cervix is known as the isthmus, and it is narrow and situated near the intersection of the internal os of the cervix and the uterine artery.

What does uterine fundus actually mean?

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Learn more about fundus here:

brainly.com/question/12974996

#SPJ4

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