What is internal and external stimulus? what is an example of each?

Biology

1 answer:

Harrizon [31]2 years ago

7 0

What is internal and external stimulus? What is an example of each?

Answer:A internal is situated or existing in the interior of something Example:No country should interfere in another country's internal affairs

Answer:A external stimulus is a detectable change in the internal or external environment. Example: When a person sees a burger when hungry they stomach starts to growl

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Which of the following would make the best index fossil?

Citrus2011 [14]

Answer: I would go with B. Here’s why: An index fossil is usually easily recognizable, and underwent a wide geographic distribution. What leads me to believe B is the correct answer, is because it’s something that existed “ all over the world”.

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Which of the following is the raw material from which sedimentary rocks are formed? A. magma from the mantle B. lava from volcan

nevsk [136]

The raw material from which sedimentary rocks are formed is D. Weathered remains of other rocks.

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Which phase occurs directly after S phase?

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Answer:

Interphase within sequences of cellular processes After the successful completion of mitosis and cytokinesis, both resulting daughter cells re-enter G1 of interphase. In the cell cycle, interphase is preceded by telophase and cytokinesis of the M phase.

Explanation:

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which process requires no energy from the cell? exocytosis, endocytosis, active transport or facilitated diffusion?

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Facilitated Diffusion-
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The aspect from which a sample is drawn is known as the

PolarNik [594]

We use samples to perform experiments. When sampling, we take test subjects from a larger group often known as "population" or at times "universe".

Sampling is a term we use to describe the process of selecting a small representitive group from a larger population. Sampling can often be divided in its simplest form into:

Random Samples
Non-Random Samples.

Which as their names imply, represent first a sample that is chosen by not specific method and whose probability is equal for the entire population, and secondly a sample chosen based on specific parameters.

Sampling can then become more complex, being divided into more complex methods such as:

Systematic sampling
Stratified sampling
Cluster sampling

etc.

The one thing all of the sampling methods have in common is the fact that they will all draw their samples from one place. This place or aspect from which samples are drawn is known as the population group or sometimes coined as the universe, to represent the group in its entirety.

To learn more visit:

brainly.com/question/350477?referrer=searchResults

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