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qaws [65]
3 years ago
12

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. Once a virus gains entry to the body

, it invades a host cell in order to
Biology
1 answer:
ivann1987 [24]3 years ago
4 0

Answer: Use the host cells biosynthetic machinery for its own growth and energy production.

Explanation:

Viruses are considered non-living because they lack cells to produce their own food and cannot grow or live on their own. Once they invade their host, they use its biosynthetic machinery for survival.

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Fire can be accidental or intentional, and it can cause erosion.
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3 years ago
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The solutions in the two arms of a U-tube are separated by a membrane that is
IgorC [24]

Answer:

See the answer below

Explanation:

Recall that: <em>Water potential = pressure potential + solute potential</em>

Since the system is an open one;

<em>Water potential = solute potential = -iCRT</em>

i = number of particles the molecle will make in water (1)

C = molar concentration

R = Pressure constant = 0.0831 liter bar/mole K

T = temperature in kelvin = 22 + 273 = 295 K

To calculate water potential on side A:

C = 1 M

Water potential = - (1 x 1 x 0.0831 x 295) = -24.51 bars

For side B:

C = 2 M

Water potential = - (1 x 2 x 0.0831 x 295) = -49.03 bars

b.

<em>Since side A has higher water potential than side B, water will flow from side A to side B until equilibrium is established between the two sides. Water always flows from the region of higher water potential to the region of lower water potential.</em>

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6 0
3 years ago
If Cas9 edits DNA, why is a molecule of RNA needed in a CRISPR complex?
pantera1 [17]

Explanation:

The use of CRISPR/Cas9 avoids the need for protein engineering to develop a site-specific nuclease against a specific DNA target sequence, requiring only the synthesis of a new piece of RNA. This dramatically simplifies and greatly reduces the time needed for gene editing design and implementation.

6 0
3 years ago
Can mutated DNA sequences be passed from parent to offspring
kakasveta [241]

Answer:

Mutation- A change in genetic structure of a organism is called as mutation.

It can be inherited to offspring if it is <em>germline or germinal mutation</em> , <em>mutation that occurs in germ cells like sperm and ovum.</em>

Explanation:

Each of the genes of a child is the copy of his parents,  one from mother and one from father.  Any kind of changes or mutation in any genes of them can be inherited to child

<em>Mutations caused by environmental factors can not transferred to next generation. Mutation caused by UV radiation, smoking, sunlight are non inheritable..</em>

4 0
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True or false: the average virus is quite large when compared with cells true or false
pashok25 [27]

Answer:

The answer is false viruses are 1/10th the size of cells

Explanation:

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3 years ago
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