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Kryger [21]
3 years ago
6

In 1859, Charles Darwin described a model of how living things change over time. He described this model and the evidence that s

upported it in a book called On The Origin of Species. Which scientific term is used to describe a testable model that seeks to explain natural phenomena?
A) data
B) hypothesis
C) observation
D) theory
Biology
2 answers:
frez [133]3 years ago
7 0

Answer:

D) theory

Explanation:

     Theory is the set of fundamental principles of an art or a science. Theory is a synthesized opinion, it is a general notion. From the Greek theoria which in the historical context meant to observe or examine. With its evolution the term came to designate the set of ideas, the basis of a certain theme, which seeks to convey a general notion of some aspects of reality.

     Theory is also a conjecture, an opinion formed before a fact. One theory attempts to explain something difficult to accomplish.

     A scientific theory is the speculative part of a science, as opposed to practice. It is a consistent system formed by observations, ideas and axioms or postulates, constituting as a whole a set that tries to explain certain phenomena.

    Examples of scientific theories are: Chaos Theory, Communication Theory, Knowledge Theory, Evolution Theory, Game Theory, Quantum Theory, Relativity Theory, among others.

Solnce55 [7]3 years ago
4 0

The answer is theory which is a proposed explanation whose status is still conjectural and subject to experimentation, in contrast to well-established propositions that are regarded as reporting matters of actual fact.

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This appears to be a prokaryote.

Explanation:

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2 years ago
Why is it so important for animals to keep the concentration of their body fluids constant​
Maurinko [17]

Answer:

A balance of bodily fluids will prevent the development of diseases, the deterioration of body organs, and death of animals.

Explanation:

Water, blood, saliva, sweat and other body fluids should be kept constant and balanced through homeostasis because the sharp rise and fall of these fluids will prevent the organs of the body from operating optimally and this can lead to the development of diseases and consequent death. For example, water is a vital fluid. Too much of water in the system can lead to diseases like Edema where the legs begins to swell because there is no way of letting out body fluids from the body.

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3 years ago
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What would happen when an artificial K+ channel is inserted into an axon membrane at resting potential?Answer questions 1-4 by s
kap26 [50]

Answer:

<h2>K+ movement will be closed or blocked because the outside is more positive charged and K+ is a positive particle.</h2>

Explanation:

Resting potential of a neuron cell is a type of condition in which the neuron lives in rest that means there is no transmission of the impulse takes place. Such type of the condition occurs due to more negative charges inside the cell and more positive charges outside the cell. During this condition potassium ions are in higher condition inside the neuron and the concentration of sodium ions are high at outside of the neuron.

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3 years ago
List 5 factors that can change the flow of water through an ecosystem: As land is
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Explanation:

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hope this helps..

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