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igor_vitrenko [27]
3 years ago
8

What is meant by crossing over?

Biology
2 answers:
Sunny_sXe [5.5K]3 years ago
3 0
When you go one way and make someone else go the other way

VLD [36.1K]3 years ago
3 0
Go 1 waymake the other go the way
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Cells tissues populations and ecosystems are all examples of.
cupoosta [38]

Given what we know, we can confirm that cells tissues populations and ecosystems are all examples of components of the biosphere.

<h3>What is the biosphere?</h3>
  • This is considered the highest level of organization of life on earth.
  • It is the sum of all of the ecosystems present on the planet.
  • Every living thing, from cells to entire forests, are contents of the biosphere.

Therefore, given that the biosphere is the sum of all ecosystems on planet Earth and includes every living thing, we can confirm that cells and ecosystems are both prime examples of this.

To learn more about the Biosphere visit:

brainly.com/question/13219657?referrer=searchResults

7 0
2 years ago
Some have speculated that the origin of life occurred at geothermal vents. amino acids can form there. compared to the amino aci
cluponka [151]

There are a number of amino acids that have formed under certain environmental conditions if the required elements are present and the energy conditions ar compatible with chemical assembly. These conditions have also allegedly formed amino acids on meteors, asteroids and comets.


But, amino acids are a very minor component of more complex biochemical assemblies required for life. Pentose sugars are also required, which form under different environmental conditions than amino acids. More importantly, only left-handed homochiral amino acids and right-handed homochiral sugars can form functioning biochemical assemblies that are viable in an organism. But, natural conditions, like hydrothermal vents only produce racemic versions of sugars and acids, meaning they are always approx. 50% left and right handed. This is fatal to forming viable biochemical assemblies.


Further, it is not possible for all of the 20+ homochiral amino acids needed for a living organism to form naturally. The only ones found have been the simpler amino acids. Also, the 4 critical nucleotide amino acids, C, G, A, T, do not form naturally, are not homochiral, nor in the right proportions.


The geo/hydrothermal vent conjecture is nonsensical. These are open systems, susceptible to currents, mineral contamination, salinity, ph, and temperature, making them a totally unacceptable environment for the precise and exact placement of elements to assemble to form life.

3 0
3 years ago
Plz help Me i will really appreciate it
Artist 52 [7]

Answer:

An energy pyramid is a model that shows the flow of energy from one trophic level to the next along a food chain. The pyramid base contains producers—organisms that make their own food from inorganic substances. All other organisms in the pyramid are consumers

Explanation:

8 0
3 years ago
Which of the following would most likely occur if cattle lost the ability to maintain a colony of microorganisms in their digest
Liono4ka [1.6K]
Digestion of cellulose
4 0
3 years ago
Please match the correct term to it definition
Reptile [31]

Answer:

Explanation:

1: Is symbiosis

2: is eutrophication

3: Predation

4: Trophic efficiency

5: Greenhouse effect

6: Nutrient cycling

Hope this helps!

If you need more help with this kind of subject reach out too me!

Please give brainliest! :)

4 0
3 years ago
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