<span>The half-life of a radioactive isotope describes the amount of time that it takes half of the isotope in a sample to decay. In the case of radiocarbon dating, the half-life of carbon 14 is 5,730 years. This half life is a relatively small number, which means that carbon 14 dating is not particularly helpful for very recent deaths and deaths more than 50,000 years ago. After 5,730 years, the amount of carbon 14 left in the body is half of the original amount. If the amount of carbon 14 is halved every 5,730 years, it will not take very long to reach an amount that is too small to analyze. When finding the age of an organic organism we need to consider the half-life of carbon 14 as well as the rate of decay, which is –0.693.</span>
Answer:
The correct answer is desert.
Explanation:
If an entomologist wants to look for a good example of an organism that prevents water loss, he must look for organisms in the desert.
A desert is one of the ecosystems that <u>receives less water</u>, the rainwater that falls is<u> less than 150 mm per year.
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Despite the heat and lack of water, there is a wide variety of living beings that inhabit this type of ecosystem. But for that <u>they must save water</u>, and they do this through adaptations that they developed when they were living in this place.
They can have two types of adaptations: physical or behavioral adaptations.
In behavioral adaptations, desert animals simply avoid the sun to generate greater water retention. Depending on the species, <u>some choose to go out only during the night</u>, and others <u>prefer to be under the shadow of a cactus.
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Some species also get the water they need through the food they eat, which prevents them from having to go in search of water.
One type of physical adaptation is the one that occurs in those animals who accumulate fatty tissue in their body which allows them to <u>stay fresh and thus prevent water from evaporating.</u>
Hello! Capillary action is the ability of liquids to move upward or downward without the help of gravity through small spaces. Different materials affect capillary action: the more absorbent a material is, the better the capillary action. One example is a paper towel. When you put one side of a paper towel in water, notice how the water moves to the other regions of the paper towel that were not exposed directly to the water. It can even move upward! Plants have the ability of capillary action, as the water from the roots are absorbed and move up to the plant where water is needed. Hope this helps! :)
Answer:
answer C
Coefficients are used in all chemical equations to show the relative amounts of each substance present.
Answer:
Thymine
Explanation:
Only one not found in RNA
