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docker41 [41]
3 years ago
7

3.

Biology
1 answer:
irina1246 [14]3 years ago
8 0

Answer:

A. It has a cell membrane but no cell wall.

Explanation:

Animal cells has a cell membrane but not cell wall because they do not require cell wall like plant cells.

In plant cells, cell walls are responsible for providing a rigid cell shape and it allows plants to stand upright without the need of bones while animals have bones that provide them a rigid shape and hence do not require cell wall in cells.

Hence, the correct option is A.

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List different causes of diseases​
Ganezh [65]

Answer:

Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.

Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.

Fungi. Many skin diseases, such as ringworm and athlete's foot, are caused by fungi. Other types of fungi can infect your lungs or nervous system.

Parasites. Malaria is caused by a tiny parasite that is transmitted by a mosquito bite. Other parasites may be transmitted to humans from animal feces.

Explanation:

i write it with the explanation on when i answer it

5 0
2 years ago
Describe the process by which coral polyps and algae create a coral reef.
xenn [34]
Coral reefs are built by coral polyps as they secrete layers of calcium carbonate beneath their bodies.  And inside each coral poly lives single-celled algae called zooxanthellae. So basically in simplistic terms, coral polys create coral reefs and algae is in coral polys which also goes into coral reefs when they are made. 
3 0
3 years ago
An instrument used for the visual examination of the ear is called a(n):
Alina [70]
The correct answer is tympanometer. A tympanometer is not used to measure hearing, but to rather measure the transmission of energy through the middle ear. In this way, tympanometry is an objective test of the function of the middle-ear. Tympanometry is used alongside other measures to asses hearing, such as pure tone audiometry.


7 0
3 years ago
The light-independent reactions of photosynthesis need
Mkey [24]

Answer:

I believe its option b. carbon dioxide.

4 0
3 years ago
The process by which simple chemical elements developed into more complex elements, molecules, and compounds, and led to the eve
stepan [7]

Answer:

The answer to your question is letter B. Photosynthesis

Explanation:

Photosynthesis is a chemical process by which plants and other microorganisms use energy from the sun to produce glucose, water and carbon dioxide. After that, glucose is converted into Pyruvate which goes into Glycolysis and the Krebs cycle.

This description mentions that from simple molecules organisms can to form more complex structures.

5 0
3 years ago
Read 2 more answers
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