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ICE Princess25 [194]
3 years ago
5

During prophase I of meiosis, crossing over between the sister chromatids occurs. What is the purpose of this process? To produc

e genetic variation. To duplicate the DNA. To produce the spindle fibers. To remove the nuclear envelope.
Biology
1 answer:
Musya8 [376]3 years ago
6 0
To produce genetic variation
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Consider a field plot containing 200 kg of plant material. Approximately how many kg of carnivore production can be supported? A
mixas84 [53]

Answer:

E) 2

Explanation:

The energy transfer through the food chain is not 100% from one consumer to another, or from the producer to the primary consumer, but instead it is around 10%. This means that if a producer has the 100% of energy, as it is the one that produces it, the primary consumer will only get 10% of its energy while consuming it, while the predator of the the primary consumer will only 10% from the primary consumer, or rather only 1% from the energy of the producer. In this case we have 200 kg of plant material. The plant material represents a producer, thus it is the one with 100% of energy. A herbivore will eat the plant material, getting 10% of its energy, thus this plant material is supporting about 20 kg of herbivore. The predator of the herbivore gets only 10% from the herbivore's energy, or only 1% of the producer's energy, thus only 2 kg of predator can be supported by the initial plant material.

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3 years ago
HELP!!!!!!!!!
tino4ka555 [31]

Correct answer: C). Cells are the basic building blocks of life but do not constitute life itself

Cell theory in a biology is a scientific theory, which is universally accepted and it states that all living organism are made up of one or more cells, cell is the building block of living thing, it also states that all cell arise from ore existing cells.

The cell theory is collection of ideas and conclusion, which were given after many years of continuous research and experiment of many scientist, which tells about the cell and how it operates.



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3 years ago
Read 2 more answers
Please Help!!!!!!!!!!
Lera25 [3.4K]

the area of the square is:  100


the area of the circle is: 78.5


i THINK if you subtract it, it will be 21.5

4 0
4 years ago
What multicellular forms of life evolved from the early single-celled organisms
natali 33 [55]
Humans is he answer
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3 years ago
Which organism would probably be the first to grow on a new volcanic island?
kvasek [131]
Grass would be the correct answer because grass seeds can float in the air. It grows everywhere and at any weather.
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