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3 years ago

Why are there so many different species of honeycreeper living on the Hawaiian Islands?

Biology

1 answer:

Serga [27]3 years ago

7 0

Answer:

separation of populations has led to the evolution of new species

Explanation:

When the populations evolve to become distinct species, then this process is termed as speciation.
Speciation can occur due to various reasons and one of these reasons is geographic isolation that leads to separation fo the populations which then faces different evolutionary pressure and thus evolve into new species.
In the Hawaiin islands, there are different species of honeycreepers because of the unique geology of Hawaii due to which new volcanic islands are constantly being formed and eroded which leads to the separation of population and their evolution into new species.

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Which of the followingcharacteristics determines when the refractory period ends?

kondor19780726 [428]

Explanation:

<u>-how long it takes for the voltage-gatedNa+ channels to close at the end of an action potential</u>

Neurons have unique structures which aid in facilitating communication by sending and receiving electrical signals very efficient.

The refractory period describes a period between the initiation of an action potential where Na+ channels are closed, and immediately after the action potential’s peak. Action potentials would require an influx of more positively charged ions; these must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.

Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more Na+ than K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential.

Learn more about the autonomic nervous system at brainly.com/question/10386413

Learn more about neurotransmitters at brainly.com/question/9424160

Learn more about homeostasis at brainly.com/question/1601808

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4 years ago

Why don’t recessive traits always eventually disappear from populations?

Iteru [2.4K]

Because the recessive trait might not show, but its there, lets say B is brown eyes and b is blue eyes, BB is brown, Bb is brown, and bb is blue, if B is present, brown will always show, but as long as the little b is there, there is a chance of the kids having blue eyes, sure most people would have brown eyes, but a lot of the people with brown eyes would be Bb

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3 years ago

Why is the dna molecule referred to as the blueprint of life

cricket20 [7]

Answer: it contains the instructions needed for an organism to grow, reproduce, develop, and survive.

Explanation:

All of the structure of the DNA molecule work together to grow, reproduce, develop, and survive.

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3 years ago

Read 2 more answers

What are male reproductive cells in a

igor_vitrenko [27]

Answer:

Pollen

Explanation:

I took the quiz

Hope this helps!

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3 years ago

What is evolution? 0:46

tatyana61 [14]

Answer:

Evolution is change in the heritable characteristics of biological populations over successive generations.

Explanation:

An example of evolution is the theory started by Charles Darwin that theorizes about how humans came to be in their present form.

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3 years ago