What is the structural level of a virus?

Answers

Answer 1

Answer: All viruses have NON-CELLULAR structure

which mean that viruses has no cells within them.

This statement is really controversial because viruses is also categorized as living organism ( all living organism beside viruses at least have one cell)

Viruses become a living organism once they got into another organism's body and using that organism's cells to operate

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No matter what the cell type, prokaryotic or eukaryotic, plant or animal, the ____________ forms a protective barrier between the exterior environment and the interior of the cell.a. cell wall
b. cytoskeleton
c. cell membrane
d. glycoproteins

Answers

c. cell membrane forms a protective barrier between the exterior environment and the interior of the cell.

Cell membranes contain membrane proteins that allows all the interaction that occurs within the cell. It makes the cell membrane selectively permeable because of its characteristics as being fluid or its fluidity which means to say that they can move freely within the lipid bilayer. The membrane proteins can also be stored in the lipid bilayer together with the enzymes. It cannot be denied that membrane proteins have a lot of functions based on its type. They can be integral proteins, peripheral proteins and lipid bound proteins.

The most common example of shared characteristics among different types of cells is the cell membrane. Every cell is enclosed by a cell membrane which protects the cell from its surroundings by separating the interior components from the exterior ones.

Further Explanation:

A cell membrane is permeable to selective molecules which means only particular substances can traverse the membrane. The essential molecules are allowed to enter whereas the toxic or non-essential molecules are excreted out of the cell through the cell membrane.

The phospholipids are arranged in a bilayer to form a cell membrane. It also contains the cholesterol present in between phospholipids and maintains the fluidity at different temperatures. The membrane also contains integral and peripheral proteins that help in the transport of materials and maintain the structure and shape of the cell respectively. Glycoproteins are also attached covalently to the membrane and help in cell-cell recognition, cell adhesion, and also serve as receptors for other molecules.

Apart from the cell membrane, certain cells also contain cell walls which surround the cell membrane. It is present in plants, bacteria, and fungi and prevents the over-expansion of the cell. In plants, the cell wall helps in providing turgidity to the cell and also maintains the shape and structure of the cell whereas, humans are devoid of cell walls instead they contain cell membranes.

A cytoskeleton is not a protective barrier for the cell but provides rigidity to the cell and is present in the cytoplasm of the cell. Its main function to provide rigidity to the cell and resistance against deformation by associating with other proteins and connective tissues. It also helps in the transport of material within the cytoplasm and also helps in cell signaling.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: The Cell Membrane

Keywords:

Cell membrane, cytoplasm, cytoskeleton, cell wall, glycoproteins, phospholipid bilayer, cholesterol, glycoproteins, integral proteins, peripheral proteins, cell recognition, cell adhesion, cell signaling.

A chimpanzee using a long twig to catch termites is an example of a(n) _____.a. external stimulus
b. patterned behavior
c. learned behavior
d. innate behavior

Answers

The correct answer is C. Learned behavior.

A chimpanzee uses the long twig to catch termites is an example of learned behavior. Chimpanzee belongs to the taxonomic genus called pan. It has two extant species, for example, bonobo and common chimpanzee.

They belong to the family Hominidae together with orangutans, gorillas, and humans. They are found in the Congo jungle.

A chimpanzee using a long twig to catch termites is an example of a learned behavior - c.

When a chimpanzee first observed that using a twig to catch termites could be a useful way of dealing with the termites, he noted that he could do it from then on.

Compare Niger’s and Italy’s net migration rates on the chart above. What do these figures mean for the two countries?

Answers

I don't know your chart, but I can provide some data:

Niger's migration rate is -0.5/1000 people: this migration rate is negative, which means that more people leave Niger than enter it.

Italy's migration rate is 4.2/1000 people: this means that more people enter Italy and settle there than leave it.

A nuclear reaction in which two atomic nuclei are combined to produce a single large nucleus and energy is released by the reaction is known as:

Answers

A chain reaction, or nuclear reaction, after shooting a single neutron bullet at a piece of uranium 235, a chain reaction for energy starts.

This is a fusion reaction, when atomic nuclei are combined.

Please help question in the picture

Answers

Answer:

Line D

Explanation:

Traveling 40 Kilometers in 60 minutes compared to the others is the slowest.

Study the following food chain: grass → rabbits → snakes → hawks. This chain supports the assumption that each populationA. supports the next trophic level.
B. is always larger than the one before it.
C. is a species of herbivore.
D. is a carnivore.

Answers

grass → rabbits → snakes → hawks. This chain supports the assumption that each population supports the next tropic level
because it tells about the next tropic level and flow of energy from one to the next
so correct option i conclude is A
hope it helps

The chain supports the assumption that each population : A. Supports the next trophic level.
Which means that the lower level will become the source of energy of the higher level organisms

Hope this helps

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