A reproductive barrier preventing interbreeding because the two species mate during different times of the year is called a temporal isolation. It basically means being isolated in time. It is a mechanism in which two species cannot mate since their mating seasons are at different period of time. For example the American toad breeds early in summer season. On the other hand, the Fowler toad would mate late in summer season. Due to this difference, they are prevented to interbreed.
Answer:
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Explanation:
First of all, energy conservation plays an important role in saving non-renewable energy resources. Furthermore, non-renewable energy sources take many centuries to regenerate. Moreover, humans consume energy at a faster rate than it can be produced. Therefore, energy conservation would lead to the preservation of these precious non-renewable sources of energy.
Energy conservation will reduce the expenses related to fossil fuels. Fossil fuels are very expensive to mine. Therefore, consumers are required to pay higher prices for goods and services. Energy conservation would certainly reduce the amount of fossil fuel being mined. This, in turn, would reduce the costs of consumers.
Consequently, energy conservation would strengthen the economy as consumers will have more disposable income to spend on goods and services.
Energy conservation is good for scientific research. This is because; energy conservation gives researchers plenty of time to conduct researches.
Therefore, these researchers will have more time to come up with various energy solutions and alternatives. Humans must ensure to have fossil fuels as long as possible. This would give me enough time to finding practical solutions.
So if you didn't know that the arteries is the biggest and carries the blood from you heart to your vessels
<span>Compound Microscope
Compound microscope is commonly used in the schools and colleges.
It comes under the category of microscopes used in biology.
It has two lenses namely the objective lens and the ocular lens.
It provides a magnification of 1500X.
Eyepiece lens is of 10X or 15X power.
It is used to observe bacterial, protozoa, various cells, etc.
</span><span>Dissecting Microscope
It is also called stereo microscope.
Its magnification power is less than the other microscope.
It gives a 3 dimensional picture.
Due to the low magnifying power they are used to observe little bigger objects than other microscopes.
They are used in the surgeries, dissection, forensic science etc.</span>
Answer:
Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills. In some fish, capillary blood flows in the opposite direction to the water, causing counter-current exchange. The gills push the oxygen-poor water out through openings in the sides of the pharynx.
Explanation:
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