1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aniked [119]
3 years ago
12

What microscope did Anton van Leeuwenhoek use to observe single celled organisms

Biology
1 answer:
ikadub [295]3 years ago
6 0
He used a simple microscope
You might be interested in
What kind of channels are located in the input region?
tamaranim1 [39]

Answer:

The correct answer is option B ( ligand gated channels opened by neurotransmitter molecules).

Explanation:

Input region or postsynaptic region or dendrite is the site of neuron cell which receives the impulse from the pre-synaptic neuron at the synaptic junction.

The cell membrane of the dendrite is embedded with ligand-gated channels which opens up in response to the ligand (neurotransmitters) produced by the neurotransmitter vesicle of axon or output region of neuron.

The neuromuscular junction is such a case where acetylcholine receptors present in the dendrite opens in the presence of acetylcholine.

Thus, option B ( ligand-gated channels opened by neurotransmitter molecules) is the correct option.

8 0
3 years ago
When a counterfeit detection pen is used on an authentic bill, what color does it turn?
garik1379 [7]
If the bill is counterfeit and the paper is wood-based, the iodine in the pen solution will react with the starch and leave a dark brown or black mark.
7 0
3 years ago
Nutrients are delivered and waste products are carried away from the cells of the posterior segment of the eye by blood vessels.
kolezko [41]

Answer:

The cells on the cornea are maintained by pheripheral vessels and surrounding fluids.

Explanation:

*- The capillaries of the limbus nourish the peripheral part of the cornea.

*- Tears supply of glucose in the tear film

*- Aqueous humor nourishing the outermost layers of the cornea the endothelium being a unicellular layer

6 0
3 years ago
Iodine is a yellowish solution. A starch solution is white. A starch solution turns purplish-black in the presence of iodine. If
cupoosta [38]

Answer:

The correct answer will be- the color change will be observed and the solution will turn purplish-black.

Explanation:

Iodine test is performed to test the presence of the carbohydrates mainly starch.

The iodine solution is chemically called potassium iodide which forms a yellow solution. The potassium iodide solution forms a complex with a starch solution which appears a purplish-black color which shows the presence of the carbohydrates.

In the given question, if we add the iodine solution to the beaker after a certain point of time then it will still form a complex with the starch and thus beaker solution will appear darker in color.

6 0
3 years ago
Which is the name of the carbohydrate formed during photosynthesis ?
Tanzania [10]

Answer:

Glucose

Explanation:

Photosynthesis requires sunlight, carbon dioxide and water to produce glucose. This simple sugar is a carbohydrate that combines with other sugars to form the plant's structure and stores energy for future use. Hope it's useful!

6 0
3 years ago
Other questions:
  • You decide to clone a gene using a plasmid vector featuring ampicillin resistance and lacz. however, when you try to grow the
    7·1 answer
  • Which statement best describes the use of land in the United States?
    13·2 answers
  • In an ecosystem where the owls eat mice the carrying capacity of both populations has been reached . how would the migration of
    15·1 answer
  • The two tubes contain bromothymol blue. After 24 hours, what will the color of the water be in tube B? A. Green (it won't change
    6·2 answers
  • Which of the following IS found in a bacteria cell?
    13·1 answer
  • if a specimen takes up one quarter of the field of view (0.500 mm), what is the size of the specimen in micrometers (um)?
    5·2 answers
  • Most Sequoias are found in which state__________________?
    10·1 answer
  • Which has the larger ratio of surface area to volume, a tennis ball or a soccer ball?
    8·2 answers
  • Principle of urease test​
    11·1 answer
  • ❤❤❤❤giirrllz côme ❤❤❤ sx gf on méét - hebcgfrxxk​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!