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Jul 21st, 2015
HelloWorld
Category:
Science
Price: $10 USD

Question description

Viruses are considered to be nonliving because they

a.

cannot multiply.

b.

use energy to grow.

c.

are smaller than bacteria.

d.

do not show all the characteristics of life.


Please select the best answer from the choices provided



Which of the following stimulates a person’s body to produce chemicals that destroy viruses or bacteria?

a.

antibiotic

b.

vaccine

c.

toxin

d.

endospore


Please select the best answer from the choices provided



Please select the word from the list that best fits the definition

part of a virus that contains the instructions for making new viruses




Please select the word from the list that best fits the definition

substances that stimulate the body to produce chemicals that destroy viruses or bacteria



The best treatment for most viral infections is

a.

an over-the-counter medication.

b.

a vaccine.

c.

an antibiotic.

d.

bed rest.


Please select the best answer from the choices provided



What directly provides energy for a virus?

a.

food

b.

its host

c.

the sun

d.

a parasite


Please select the best answer from the choices provided



Why are viruses like parasites?

a.

They harm the cells they enter.

b.

They multiply.

c.

They use their own energy to develop.

d.

They make their own food.


Please select the best answer from the choices provided



All of the following are characteristics of viruses except:

a.

Viruses are smaller than cells.

b.

Viruses can be different shapes.

c.

Viruses live as parasites.

d.

Viral diseases are curable.


Please select the best answer from the choices provided



Which of the following viral characteristics is shared with other organisms?

a.

shape

b.

produces energy

c.

contains nucleus

d.

ability to multiply


Please select the best answer from the choices provided



How does a vaccine work?

a.

It activates the body’s natural defenses.

b.

It weakens the cell walls of bacteria, causing the cells to burst.

c.

It treats the symptoms of an infection.

d.

It attacks antibiotic-resistant bacteria.


Please select the best answer from the choices provided




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