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Nesterboy [21]
3 years ago
11

True or false viruses need host cells to replicate​

Biology
1 answer:
Ray Of Light [21]3 years ago
7 0
True bc they depend on the host cells that they infect to reproduce
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Use of moist heat can control microbial growth in many circumstances, but heat-sensitive items and those susceptible to moisture
sattari [20]
<h2>Answer is option "b"</h2>

Explanation:

  • Non-ionizing radiation is radiation that has a lower frequency, or longer wavelength, in the EMR spectrum. These frequencies range from that of power lines, radios, and cell phones, up to visible light. Non-ionizing radiation is not powerful enough to break the chemical bonds in molecules. In general, it is not harmful to human health as radiation per se, but could be harmful in terms of the transfer of heat energy. An example of an emitter of non-ionizing radiation is a microwave oven.
  • Non-ionizing radiation is less harmful because the rays carry much less energy. Radio waves, light, and even heat are examples of non-ionizing radiation. For the most part, these kinds of radiation do not cause any damage. However, ultraviolet light is a kind of non-ionizing radiation that can be harmful - it can cause mutations in DNA
  • Non-ionizing radiation is limited to the lower energy range electromagnetic radiation, which is more commonly known as light. However, the light we can see with our eyes, visible light, is only a small section of the electromagnetic radiation spectrum as seen here
  • Hence the right answer is option "b"

7 0
3 years ago
1. What characteristics do the mountains in a mountain range have in common?
lesantik [10]

Answer:

Mountains are prominent landforms that have significant heights above sea level and/or the surrounding land. They are steeper than hills. A mountain or mountain range usually has a peak, which is a pointed top. Mountains have different climates than land at sea level and nearby flat land. Climate is the weather over an extended time period for a specific area. The climate of mountains tends to include colder weather, wetter weather, and thinner air. Thin air refers to the fact that at the higher altitudes of a mountain there is less oxygen to breathe. Also, mountains generally have less hospitable conditions for plants and animals. This leads to quite different evolutionary adaptations for those plants and animals that make higher elevations their home.

6 0
2 years ago
a student conducts an experiment to determine if ultraviolet light kills bacteria .his result do not support his hypothesis .we
Alekssandra [29.7K]

A hypothesis cannot be wrong, because it is an educated guess. You cannot prove a guess wrong. A guess is something you think, and there is no right or wrong answer to thoughts.

8 0
3 years ago
Read 2 more answers
The movement of food substances from the stems to growing tissues and storage tissues is called:
mylen [45]
The answer should be B; translocation. hope this helps (:
3 0
3 years ago
after being bit by a poisonous snake, jacob was treated with an injection of an antiserum produced by immunizing a horse or shee
brilliants [131]

T cells and B cells are the two main cell types that are crucial to the efforts of the adaptive immune response, in addition to cytokines and APCs.

<h3>Passive immunity is conferred by which of the following?</h3>

By supplying antibodies or lymphocytes that have already been produced by an animal or human donor, a vaccination may also impart passive protection. Most vaccines are administered parenterally (by injection), although some can also be taken orally or even nasally (in the case of flu vaccine).

Monoclonal antibodies search for and bind to the spike protein that protrudes from the coronavirus that causes COVID-19 after they have entered your body. Monoclonal antibodies that bind to the spike protein can prevent the virus from entering cells, slowing the infection.

The endothelial cell glycocalyx, which serves as a molecular sieve, and pressure gradients in the capillary beds both affect how lymph fluid is formed. toward with fluid propulsion

To learn more about Passive immunity refer to:

brainly.com/question/15255230

#SPJ4

6 0
1 year ago
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