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ozzi
3 years ago
8

Which statement best describes a characteristic of a scientific theory?

Biology
2 answers:
bija089 [108]3 years ago
4 0
<span>An educated guess that can be consistently testable </span>best describes a characteristic of a scientific theory.
tester [92]3 years ago
3 0

Answer;

An educated guess that can be consistently testable

Explanation;

-A scientific theory is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed, preferably using a written, pre-defined, protocol of observations and experiments.

-A theory is the result of testing a hypothesis and developing an explanation that is assumed to be true about something. A theory is always backed by evidence; a hypothesis is only a suggested possible outcome, and is testable and falsifiable.

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In a comparison of birds and mammals, the condition of having four limbs is _________.
Rashid [163]

a. A shared ancestral character.

Explanation:

The condition of birds and mammals having four limbs is a shared ancestral character because the structure of the limbs are similar in both the cases.

The forelimbs of the bird are modified into wings to aid flying.The hind limbs are modified into feel and claws.

These are homologous structures to the hands and feet in mammals.

That means they have a common origin, and hence are shared ancestral character.

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3 years ago
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How is the primary structure of a protein determined?
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Answer:

The primary structure of a protein is determined by the gene corresponding to the protein. A specific sequence of nucleotides in DNA is transcribed into mRNA, which is read by the ribosome in a process called translation.

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3 years ago
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Which of the following can upset the balance of an ecosystem?
seropon [69]

Answer:

All of the above.

Explanation:

  • Light and Water both are among the ecological factors .
  • Ecological factors are those components of environment which determine the variation in the chemical and physical nature of different ecosystem.
  • A balanced ecosystem needs to have all its ecological factors in adequate amount.
  • Thus, too much water, too much light, not enough light or not enough water , any of these condition can upset the balance of ecosystem.
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3 years ago
Models are important in science. Some models are verbal models, which are full elaborate descriptions that can help someone visu
statuscvo [17]

The main layers of Earths interior are the inner core, the outer core, the mantle and the crust.

<h3>What is the indirect evidence that helped us determine the layers?</h3>

Use of seismic waves is the indirect evidence that helped us determine the layers. When earthquakes occur they produce seismic waves.

The flow of matter occurs by convection. The dense crust subducts back into the mantle exert forces on crustal plates that then move, producing tectonic activity.

So we can conclude that The main layers of Earths interior are the inner core, the outer core, the mantle and the crust.

Learn more about earthquake here: brainly.com/question/248561

#SPJ1

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2 years ago
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