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ch4aika [34]
3 years ago
10

The messages that scientists are sending into space are directed at intelligent alien life. Do

Biology
1 answer:
kykrilka [37]3 years ago
8 0

Answer:

I think there is life beyond earth. Actually there most definently is. I think in  a way it could be limiting. It's the fcat that the ones out there may not even be able to receive the message as fast as we please. Who knows, it could be years, decades, maybe centuries before they make actual contact with us. Then again, maybe they already have. But, the way this could affect the study is the fact that (I doubt it) but maybe a message could be sent the wrong way, or they misinterpret it. That's the only think I can get off. Anyway, this can also depend on how much funding is going into space. This also brings up the question, "How much do we know about our own planet?

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What are the products of step 1 of the hydrogen fusion process in the Sun? Check all that apply.
Ne4ueva [31]

Explanation:

Nuclear fusion is a process in which two small nuclei combine together to result in the formation of a larger nuclei.

In Sun, the first step of hydrogen fusion includes combining of two hydrogen nuclei to result in the formation of a deuterium, positron and neutrino.

The nuclear fusion reaction inside the sun is as follows.

    ^{1}H + ^{1}H \rightarrow ^{2}D + positron + neutrino

Thus, we can conclude that products of step 1 of the hydrogen fusion process in the Sun are isotope of hydrogen, a neutrino, and a positron.

6 0
4 years ago
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The gradual replacement of regionally distinct ecological communities with cosmopolitan communities that reflect the increasing
Yuki888 [10]
Biotic homogenization is <span>the gradual replacement of regionally distinct ecological communities with cosmopolitan communities that reflect increasing global activity of humans</span>
8 0
3 years ago
If you suspect your culture of bacteria has 23 x 106 cells per mL, what would you want the final dilution to be in order to end
olya-2409 [2.1K]

The dilution factor in order to end up with 96 colonies of bacteria is 0.23 × 10^6 .

For calculating the colony forming unit bacteria;

Colony-forming unit (CFU or cfu) is a measurement of live bacterial or fungi cells and is used to calculate the colony-forming unit of bacteria. CFU counts only viable cells as opposed to direct microscopic counts, which count all cells, both living and dead, using a hemocytometer. Colony-forming units per milliliter (CFU/mL) for liquids and colony-forming units per gram (CFU/g) for solids are used to indicate the results for convenience. The miles and Misra method can be used to compute CFU, which is helpful for assessing the microbiological load and severity of illness in blood and other samples.

∴ cfu/ml = (no. of colonies x dilution factor) / volume of culture plate

  23 x 10^6 cells per mL          =  96 × dilution factor

  Dilution factor  = 23 ×10^6 / 96

  Dilution factor  = 0.23 × 10^6

Therefore, the dilution factor in order to end up with 96 colonies of bacteria is 0.23 × 10^6 .

Learn more about bacteria here:

brainly.com/question/27176993

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6 0
2 years ago
What effects can an invasive species have on an ecosystem?Choose all that apply
gogolik [260]

Answer:

It should be D.

Explanation:

The invasive species will negatively effect the ecosystem and the natural predator in the area. Like the Blue Lobster problem in Maine.

6 0
3 years ago
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This dinosaur lived long ago on Earth in a tropical climate. The dinosaurs were killed and became extinct because of a change in
NeTakaya

Answer:

Geological, chemical, paleontological.

Explanation:

Geological evidence for ice ages comes in various forms, including rock scouring and scratching, glacial moraines, drumlins, valley cutting, and the deposition of till or tillites and glacial erratics.

Successive glaciations tend to distort and erase the geological evidence, making it difficult to interpret.

It took some time for the current theory to be worked out.

There have been at least four major ice ages in the Earth's past.

Paleontological by their bones, remains

7 0
3 years ago
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