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Oksi-84 [34.3K]
3 years ago
9

What reasons do scientists give for saying that ciruses are not living organisms?

Biology
1 answer:
vaieri [72.5K]3 years ago
8 0
None of the choices are correct
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What does the biological species concept use as the primary criterion for determining species boundaries?
Marysya12 [62]

Answer:

The correct answer is C) gene flow

Explanation:

The biological species concept defines what is a species. It says that a species is a group of individuals in a population that interbreed with each other. So there should be gene flow between the members of the population to come under species.

Appearance does not define that two individual are of same species because even different species can look same for example Western meadowlarks and eastern meadowlarks looks identical to each other but they do not interbreed so there is no gene flow between them so they are not same species.  

Therefore the primary criteria for determining species boundaries is gene flow.

4 0
3 years ago
which of these features is most likely formed as a result of the movement of earth plates in the diagram?
aksik [14]

Answer:

A is the Answer

Explanation:

7 0
3 years ago
A cell is placed in a water solution with the same salt concentration as the cell. The cell is placed in a _____.
Nikolay [14]
Isotonic solution. Hypotonic is less salt concentration and hypertonic is more
4 0
3 years ago
Read 2 more answers
Are herbivores primary, secondary, or tertiary consumers, explain your answer.
raketka [301]
Herbivores are primary consumers because they only eat off of plants.
6 0
2 years ago
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In the Landolt-C acuity test, the average threshold for accurately identifying the position of the gap in the C-like character w
Stella [2.4K]

Answer:

  0.859 minutes of arc

Explanation:

The arc length for a given radius and angle in radians is ...

  s = rθ

So, the angle is ...

  θ = s/r

For the given geometry, the angle in radians is ...

  θ = (0.75 mm)/(3000 mm) = 0.00025 radians

In minutes of arc, this is ...

  (0.00025 radians)(60 minutes/degree)(180 degree/(π radians)

  = (0.0025)(60)(180)/π minutes

  ≈ 0.859 minutes

The angle subtended is about 0.859 minutes of arc.

4 0
3 years ago
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