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Luda [366]
3 years ago
10

The virus that causes chicken pox contains DNA. It reproduces inside the cells of living organisms. The virus is not made of cel

ls and does not eat or breathe. Why isn’t the virus considered to be a living thing?
Biology
1 answer:
Alex777 [14]3 years ago
8 0

Viruses lack the properties of living things:

1. They have no energy metabolism

2. They do not grow

3. They do not respond to stimuli

4. They do not reproduce independently- they have to replicate by invading living cells.

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 Easy to read  Visually appealing  Handles large data sets easily using keyed icons
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3 years ago
A microbiologist has identified a new gram-negative pathogen that causes liver disease in rats. She suspects that the bacterium’
valina [46]
<h2>Koch's postulates </h2>

Explanation:

Koch formulated a set of criteria that could be used to identify the pathogen responsible for a specific disease and these criteria came to be known as Koch’s postulates:

The organism must be regularly associated with the disease and its characteristic lesions

The organism must be isolated from the diseased host and grown in culture

The disease must be reproduced when a pure culture of the organism is introduced into a healthy, susceptible host

The same organism must be re-isolated from the experimentally infected host

In the given hypothesis , Koch's postulates could be used as:

1) identify pathogen associated with disease 2) isolate or purify pathogen 3) test subject gets pathogen 4) same disease/ causes liver disease or not

3 0
3 years ago
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Vladimir79 [104]

posin may become a Hazzard to people who or vacation outdoors

5 0
3 years ago
A population of a tree snail species has different patterns in their shells. These slight
Alja [10]

Variations can be genetic or environmental, the traits are passed from one generation to other generation of snail is from from both parents to offspring and through the environment.

The correct answer is C.

Explanation:

Genetic variation in an organism is passed to the offspring by its parents.

environmental variation is the the result of different environment with which individual adapt.

Natural selection is a process in which a suitable trait which is well adapted to the environment is passed on tho future generations.

Genetic variation is the change in DNA or gene of the individual trait. The tree snails having different pattern in their shells is due to the habitat they are living in.

The snails which have well adapted to the environment are able to reproduce and pass on the traits to their progeny. The variation is due to the traits passed from parents through the environment also.

5 0
3 years ago
3. You begin with one cell that contains twelve chromosomes. This cell undergoes one mitotic division (you need to know the end
andreyandreev [35.5K]
<h2>Answer:</h2><h3>Part 1.</h3>

After one mitotic division, end result will be two cells.

<h3>Explanation:</h3>

Because mitosis is a cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

<h3>Part 2:</h3>

There will be 12 chromosomes in each daughter cell.

<h3>Explanation:</h3>

Because number of chromosome remain same (diploid) in mitosis.

3 0
3 years ago
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