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professor190 [17]
3 years ago
7

Why is earth considered an open system and a closed system? (Site 1) O

Biology
1 answer:
Ratling [72]3 years ago
5 0

Answer:

Open system: has the transfer and exchange of matter and energy in the system's surroundings.

Closed system: has a limit to how much matter is exchanged.

All of Earth's systems are considered open systems, but as a whole, they are closed.

Explanation:

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Which of the following is not a negative consequence of upward urban growth?
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If t=talk and t= short what will be the physical appearance of the offspring in the cross
qwelly [4]

Answer:

If T=tall and t=short, what will be the physical appearance of the offspring in the cross?

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It looks like your question is incomplete, so I'll try to fill in the blanks.

The offspring will depend on the parents.  Each parent will need two alleles, so each parent would have to be TT (tall), Tt (tall) or tt (short--this is the only way to have a short individual).

Here are all the possible crosses:

TT X TT  = 100% TT (all tall)

TT X Tt = 50% TT, 50% Tt (all tall)

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Tt X Tt = 25% TT (tall), 50% Tt (tall), 25% tt (short)

tt X tt = 100% tt (short)

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3 0
2 years ago
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