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nirvana33 [79]
3 years ago
10

Plasma from a sick mouse is filtered across a membrane that has a 200 nm pore size. If the filtrate is still infectious when inj

ected into a healthy mouse, then the pathogen is most likely a(n):
-parasitic worm
-fungus
-virus
-bacterium
-archaean
Biology
1 answer:
iragen [17]3 years ago
4 0

Answer:

Virus

Explanation:

Viruses are usually sized 5 - 300 nanometers, while other organisms are much bigger (bacteria 0.5 to 5 micrometers).

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Which statement best describes a galaxy?
saw5 [17]

Answer: G

Explanation: A galaxy is indeed a collection of stars, gas, and dust held together by gravity.

6 0
3 years ago
Why is the burning of fossil fuels a concern for scientists?
antoniya [11.8K]
Because it pollutes the atmosphere and isn't a renewable source of energy
5 0
3 years ago
The list shows some of the livestock being raised in South Dakota.
TiliK225 [7]

As per the given data, Beef cows a type of livestock is least likely to be raised in large-scale industrial livestock production in South Dakota. The correct option is A.

<h3>What is livestock?</h3>

With the exception of poultry, livestock refers to farm animals. Cattle, sheep, pigs, goats, horses, donkeys, and mules predominate in Western countries; other animals, such as buffalo, oxen, llamas, or camels, may predominate in other areas' agriculture.

As per the given data, Beef cows a type of livestock is least likely to be raised in large-scale industrial livestock production in South Dakota.

Thus, the correct option is A.

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7 0
2 years ago
Four million years ago, horses were rather small compared to today's horses and had relatively stocky bodies with a straight sho
NikAS [45]

Answer:

The biological concept of evolution.

Explanation:

The process by which living organisms defy the environment that they habit and shapes every single trait of them. According to evolution every species that has ever existed in this world has suffered modifications by different reasons (mutation, for instance) and environment was the responsible to select the ones that were more suitable to last. The process of evolution can be delusional because it may be necessary millions of years to fulfill its mechanisms, specially in complex organisms like mammals.

6 0
4 years ago
You observe that your friend has dimples. dimples result from the presence of the dominant gene d; absence of dimples is a homoz
anzhelika [568]

Answer:

DD or Dd

Explanation:

Dimples is the dominant trait (D). Your friend has dimples so that means he or she should have at least one allele of the dominant trait to express that trait. So your friend would either be homozygous dominant (DD) or heterozygous dominant (Dd). Notice that there is a recessive allele in the second. Even with that present, dimples would be still expressed.

4 0
4 years ago
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