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skelet666 [1.2K]
3 years ago
10

Explain how sexual reproduction produces variation.​

Biology
1 answer:
nikdorinn [45]3 years ago
3 0

Answer:

Half the DNA from each parent goes to offsrping so that means that the offspring has entirely new DNA and not cloned.This means that the organism is different to its partents and therefore variated

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In pea plants, green color (G) is dominant to albino (g). If we cross two pea plants that are heterozygous for color, what would
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Explanation:

<em><u>risky </u></em><em><u>behavior </u></em><em><u>and </u></em><em><u>abuse </u></em>

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2 years ago
PLEASE SOMEONE AWNSER THIS FOR REALLLL PLEASEEEEE
ziro4ka [17]

Answer:

It is pertinent to understand what hypertonic, hypotonic, and isotonic solution means before setting out to explain how a cell reaches equilibrium in each type of solution.

A hypertonic solution is one whose solute concentration is higher than that of the sap of a cell that is immersed in it.

A hypotonic solution is one with the same solute concentration as that of the sap of the cell immersed in it.

An isotonic solution has a lower solute concentration than that of the sap of the cell immersed in it.

In biological systems, water molecules move by osmosis from the region of higher water potential or lower concentration of solutes to the region of lower water potential or higher concentration of solute. An equilibrium is reached when there is no net movement of water between two sides. Hence;

A cell placed in a hypertonic solution will lose water to the surrounding solution until an equilibrium is reached. This means that such a cell will end up shrinking (wilting) or even dying due to loss of water from the cell sap.

A cell placed in a hypotonic solution will gain water from the surrounding solution until there is no net movement of water anymore. Such a cell might become turgid or even burst out its cell content.

A cell placed in an isotonic solution will neither gain nor lose water because the cell sap and the surrounding solution have equal solute concentrations.

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3 0
2 years ago
Hawking states that much of human behavior has not been calculated to “aid in
ss7ja [257]

The complete statement made by Stephen Hawking is: "though much of its behaviour through out history, has been pretty stupid, and not calculated to aid the survival of the species."

If one looks at our history, there are some events that defy our capacity for logical thinking. One would think that, as we possess this capacity, we would be able to direct our decisions towards the survival of the human species.

However, in many cases greed and the desire for personal gain have taken precedence. One good example was the burning of the great library of Alexandria, one of the most significant libraries in the ancient world. This magnificent collection was lost during the siege of Alexandria, when Julius Caesar set on fire the ships in the harbor.

Another example is the atomic bomb, when science has been used to invent one of the most destructive weapons known to us. Atomic warfare is still a threat that may end all life on Earth.

Furthermore, the greed of some corporations has led to multiple ecological catastrophes that endanger not only other species but our own future as well. One example is the Bhopal gas leak in India, where in 1984, due to poor maintenance, the chemical plant released 30 metric tons of methyl isocyanite into the atmosphere.

8 0
3 years ago
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In what type of tectonic plates boundary do do the plates slide past each other
sergejj [24]

Answer:

A transform plate boundary occurs when two plates slide past each other, horizontally. A well-known transform plate boundary is the San Andreas Fault, which is responsible for many of California's earthquakes.

Explanation:

hope it helps u

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3 years ago
The nucleus in a body cell of a fly contains 12 chromosomes.
SSSSS [86.1K]

Answer:

it contains 6, the number of chromosomes in the gamete is half the number of chromosomes in the nucleus of the body cell.

I hope this helps

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