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balandron [24]
3 years ago
5

4. There have been many attempts over time to explain the mechanism behind the evolution of living

Biology
1 answer:
Bingel [31]3 years ago
4 0
C) According to Lamarck, long necked giraffes evolved because they spent the majority of their time stretching their necks and this trait was passed down to offspring; according to Darwin, Giraffes with long necks had the advantage in the environment and survived, reproduced, and passed this trait on to offspring.
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When fruits or vegetables are left exposed to the air after they have been boiled, they don't turn brown. How can you explain th
m_a_m_a [10]

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I guess cuz u didn't use direct heat with fire, just hot water

Explanation:

6 0
3 years ago
What happens when a hypothesis is not supported
Temka [501]
<span> For a start, when you have a question that needs answering in science, you formulate a null hypothesis. That is a negative statement which you then set out to prove or disprove. This is just a convention. So if your initial question is for example, "Does sugar dissolve in water?"

Your null hypothesis will be "Sugar does not dissolve in water."
You then set up your experiment and get some data.

Now if your data doesn't support your null hypothesis then you reject it and make the statement ,"Sugar does dissolve in water." As you can see from this simple example, a non-result is still a result so the idea of formulating new tests as mentioned by another answerer isn't necessary and in some ways is the incorrect thing to do. In science, hypotheses are often not supported by data and i would argue that this is the case a lot of the time. A non-result is still a result and you will have plenty to write about whichever way it goes. </span>
5 0
3 years ago
Which mechanism of genetic variation results from the exchange of gene segments between non-sister chromatids? Select one of the
Marysya12 [62]
A) Crossing over is the mechanism of genetic variation that results from the exchange of gene segments between non-sister chomatids.
6 0
3 years ago
Read 2 more answers
Which one of the following has irregular shape
SSSSS [86.1K]

Answer:

A cheek cell

Explanation:

Human cheek cells are roughly circular or irregular in shape

8 0
3 years ago
Which is the energy biomolecule for all living things?
jolli1 [7]

Answer:

Carbohydrates

Explanation:

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4 0
3 years ago
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