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a_sh-v [17]
3 years ago
9

Help

Biology
1 answer:
marin [14]3 years ago
6 0

Answer:

Both electromagnetic and mechanical waves are the movement of energy. They can be measured in the same ways too. The amplitude, frequency, and wavelength are ways to represent the measurements of waves. Additionally, they both have crests and troughs. Finally, both can be reflected, absorbed, or transmitted.

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Why are conifers so common in American forests?
tiny-mole [99]

Answer:

Answer is C

Explanation:

Coniferous forests grow in a wide range of climates, from the coldest polar regions to the warmest tropical regions and everything in between. The reason they're so prevalent worldwide is because they take advantage of certain environmental conditions that other trees aren't able to live in as well. Conifer trees are adapted for cold and harsh climates. ... The needle-like leaves are an important adaptation to Conifer trees because they do not accumulate much snow, keeping the weight load mild. Even though Tamarack trees lose their leaves in the winter, they are still subject to some snowfall.

7 0
3 years ago
Which best describes radiometric dating?
DIA [1.3K]

The answer is; B


Rocks have naturally occurring and spontaneously radioactive atoms in them, such as carbon-14. These element isotopes decay into other types of atoms over millions of years. Therefore, by measuring the amount of these radiometric substances, and knowing the half-life of the isotopes, it is possible to postulate the age of a rock to within certain ranges of error.


3 0
3 years ago
Read 2 more answers
Match each energy type with the source uses
nlexa [21]

Answer:

Geo thermal : Nuclear reactions

Bio mass : plants

Solar : sun rays

Hydro power : Water

Explanation:

Geothermal energy is also used to directly heat individual buildings and to heat multiple buildings with district heating systems. Hot water near the earth's surface is piped into buildings for heat. A district heating system provides heat for most of the buildings in Reykjavik , Iceland.

The major biomass sources currently used are sugar cane and corn to produce bioethanol , and rapeseed for biodiesel production. Other sources are also used such as sunflower seeds, soybean, canola, peanuts, jatropha , coconut and palm oil for biodiesel, and wheat, sugar beet, sweet sorghum and cassava for bioethanol

Conversion of energy from sunlight into electricity

Hydropower or water power is power derived from the energy of falling or fast-running water, which may be harnessed for useful purposes.

8 0
3 years ago
What is a complex Sugar? Please a specific answer(make more sense)
kolezko [41]

Answer:

Complex carbohydrates are MADE up of sugar molecules that are strung together in long complex chains, complex carbohydrates are found in food like peas, beans, whole grains and vegetables.

Explanation:

Both SIMPLE and COMPLEX carbohydrates are turned into glucose (blood sugar) in the body and are used as energy.

I really hoped this helped some, I tried to make it specific :[

4 0
3 years ago
Hershey and Chase used a DNA-based virus for their work. How might the results have been different if they had used an RNA virus
4vir4ik [10]

Answer:

The correct answer is c.With an RNA virus, radioactive RNA would have been in the final pellet.

Explanation:

Hershey and Chase infected<em> E.coil</em> with bacteriophage which was having DNA as its genetic material. The bacteriophage was labeled with radioactive sulfur and radioactive phosphorus and it was radioactive phosphorus that was found in the bacterial cells or pellet.  

As because DNA contains phosphorus, not protein therefore they it was proved that DNA is the genetic material. Similarly, RNA is also a nucleic acid which is genetic material for many viruses and contains phosphorus.

So if Hershey and chase might have chosen an RNA virus then radioactive RNA would have been present in the pellet. So the correct answer is c.

7 0
3 years ago
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