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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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The National Park Service protects habitats such as the Florida Everglades. Which explanation states the importance of conservin
Anna [14]

The importance of conservation of habitats is that habitat conservation protects biodiversity in the region.

<h3>Conservation of habitats</h3>

Habitat can be defined as an environment that is made up of resources that are used by a particular organism.

There are different types of habitat which include:

  • aquatic habitat,

  • terrestrial habitat and

  • arboreal habitat.

These habitats needs to be conserved to maintain biodiversity which is an essential part of global food security.

Learn more about biodiversity here:

brainly.com/question/11542363

8 0
2 years ago
Read 2 more answers
A rock sits high on a mountain top. What may happen to this rock in the next hundred year?
miss Akunina [59]
The area around the rock will have weathered down and the rock will eventually either break or it will fall down the mountain
8 0
3 years ago
What is phylenogeny?
skad [1K]

Answer:

the branch of biology that deals with phylogenesis

Explanation:

another term for phylogenesis

3 0
3 years ago
Read 2 more answers
An organism adapts to both biotic and abiotic factors in its environment. Decide if each adaptation is in response to a biotic o
Sauron [17]

Answer:

The correct answer is

1. A rabbit living in  a desert has long ears  to disperse heat- abiotic factor.

2. A moth immediately  dives to the ground  when it hears a bat- biotic factor.

3. A lizard stays warm  by sunning itself  on a rock- abiotic factor.

4. A cactus has spines  instead of leaves  to help conserve water- abiotic factors.

5. A petunia is  bright red to  attract hummingbirds- biotic factor.

6. A stick-bug blends in  with trees to hide  from predators- biotic factor.

Explanation:-

The environment includes both abiotic and biotic factors which can affect the ecosystem. Living elements like plants and animals which affect ecosystem are known as biotic factors while the non-living elements which include air, water, temperature are called abiotic factors.

In the given question the options affected by the biotic factors due to bat, due to hummingbirds and due to predators.

Options affected by the abiotic factors due to heat and due to water.

4 0
3 years ago
As a cell grows, it Select one: a. places more demands on its DNA. b. uses up food and oxygen more quickly. c. has more trouble
ankoles [38]

Answer:

D. All of the above

Explanation:

Just as when we grow and need more food and energy so does a cell. when a cell is growing there is more of it that can be utilized putting more stress on the DNA to code whatever it needs. The bigger the cell is the denser and thicker the cell membrane gets making it harder for materials to work its way in and out of the cell.

6 0
2 years ago
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