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Gwar [14]
3 years ago
5

Explain how scientists use geologic time to determine the age of landforms.

Biology
1 answer:
Pavlova-9 [17]3 years ago
8 0

Answer:

Explanation:Following are the techniques or methods or approaches we can say that were used by the scientists to determine the geologic age:

1. Relative age dating

2. Absolute age dating.

3. Radiation measurement.

4. Stratigraphic superposition.

5. The fossil record.

The scientists used the method of relative dating to divide Earth's past in different chunks of time when alike organisms were on Earth. After that, to discover the actual number of years ago that events occurred, the scientists used the method of absolute dating.

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1)

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5)

The dark-colored fur seems to have the greatest overall selective advantage

6)

Dark lava, that changed the color of the substrate, from light to dark.

7)

Because to produce dark color, animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. All of the animals are inhabiting dark substrate, which means that this environmental condition is favoring the same phenotype.

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To see if the mice population is evolving, you need to take a sample of animals per year, through many years, and analyze if it is changing or not. If the population is evolving, you will notice a change in the allelic and genotypic frequencies over the years, favoring one genotype or the other. If the population is not evolving, the frequencies will keep equal through the years, it will not change.

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Norepinephrine and dopamine are examples of transmitters whose synaptic activity is terminated by'
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The process of reuptake is essential for usual synaptic physiology as it permits for the recycling of neurotransmitters and monitors the neurotransmitter level in the synapse, thus, monitoring the duration of the signal resulting due to the discharge of the neurotransmitter.  


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