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Darina [25.2K]
3 years ago
13

Effective ways of preventing virus contamination include all of the following except

Health
1 answer:
larisa86 [58]3 years ago
3 0

Answer:

a way to not spread a virus is proper hygiene wash Ur hands before u cook make sure u don't cough sneeze or blow Ur nose around the food and it will help if u wash Ur hands every time u use the bathroom to

Explanation:

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Kelsy contracted an infection caused by a pathogen from the genus Trichophyton. Her doctor gave her a medicated cream to rub on
TEA [102]

Answer:

whats that? i have no idea what that is lol

Explanation:

8 0
3 years ago
How does a heart get started again if it stopped?
Salsk061 [2.6K]

Answer:

Explanation:

If you have cardiac arrest because the heart is very slow or is stopped, shocking it will not help.” An automated external defibrillator (AED) is a portable electronic device that works to restore the heart's normal electrical activity and get the heart beating again.

8 0
2 years ago
Read 2 more answers
All cells share the following common components except
Monica [59]

Answer:

All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.



Figure 1. This figure shows the generalized structure of a prokaryotic cell.

A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid (Figure 1).

Unlike Archaea and eukaryotes, bacteria have a cell wall made of peptidoglycan, comprised of sugars and amino acids, and many have a polysaccharide capsule (Figure 1). The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents dehydration. The capsule enables the cell to attach to surfaces in its environment. Some prokaryotes have flagella, pili, or fimbriae. Flagella are used for locomotion, while most pili are used to exchange genetic material during a type of reproduction called conjugation.

Eukaryotic Cells

In nature, the relationship between form and function is apparent at all levels, including the level of the cell, and this will become clear as we explore eukaryotic cells. The principle “form follows function” is found in many contexts. It means that, in general, one can deduce the function of a structure by looking at its form, because the two are matched. For example, birds and fish have streamlined bodies that allow them to move quickly through the medium in which they live, be it air or water.

A eukaryotic cell is a cell that has a membrane-bound nucleus and other membrane-bound compartments or sacs, called organelles, which have specialized functions. The word eukaryotic means “true kernel” or “true nucleus,” alluding to the presence of the membrane-bound nucleus in these cells. The word “organelle” means “little organ,” and, as we learned earlier, organelles have specialized cellular functions, just as the organs of your body have specialized functions.

Cell Size

At 0.1–5.0 µm in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10–100 µm (Figure 2). The small size of prokaryotes allows ions and organic molecules that enter them to quickly spread to other parts of the cell. Similarly, any wastes produced within a prokaryotic cell can quickly move out. However, larger eukaryotic cells have evolved different structural adaptations to enhance cellular transport. Indeed, the large size of these cells would not be possible without these adaptations. In general, cell size is limited because volume increases much more quickly than does cell surface area. As a cell becomes larger, it becomes more and more difficult for the cell to acquire sufficient materials to support the processes inside the cell, because the relative size of the surface area across which materials must be transported declines.



Figure 2. This figure shows the relative sizes of different kinds of cells and cellular components. An adult human is shown for comparison.

IN SUMMARY: COMPARING PROKARYOTIC AND EUKARYOTIC CELLS

Prokaryotes are single-celled organisms of the domains Bacteria and Archaea. All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles. Many also have polysaccharide capsules. Prokaryotic cells range in diameter from 0.1–5.0 µm.

Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions. Eukaryotic cells tend to be 10 to 100 times the size of prokaryotic cells.

Explanation:

please mark me as brainliest thank you

5 0
3 years ago
Which of the following is NOT a kind of psychotherapy​
Bad White [126]

Answer: C)

Explanation: I have found the options that are missing.

A insight B cognitive C medications D groups

The right answer is c)medications, because the psychotherapy is referring to talking about emotions and understanding and other techniques that can help a person in problems. It is also called a talk therapy sometimes and talking is considered in cognitive, insight and group techniques. In this kind of therapy, person is talking about feelings, behavior, thoughts and issues.

8 0
3 years ago
Which of these are tested for compatibility before a transplant to ensure a high probability of success?
Aleksandr-060686 [28]
The answer is not parasites, or pathogens.  These are tested for before the donor and recipient are even matched

The antibody screen will test for antigens.  So I believe the answer is Antibodies.


3 0
3 years ago
Read 2 more answers
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