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2 years ago

How do the condition in the United States change when the jet streams moves to the south

2 answers:

6 0

This jet stream—the one that forms at the polar front—affects weather in the United States. ... This shift occurs because the entire hemisphere is cooler, so the boundary between the cold polar air and the warm southern air shifts south. As a result, the jet stream shifts toward the south in winter.

oee [108]2 years ago

4 0

Answer:

More cold winters in the south

Explanation:

The fast moving air currents that circulate above the surface of earth is called as jet streams. These winds travel between the troposphere and stratosphere and hence are much stronger during the winters in northern & southern hemisphere due to higher temperature differences. However, the winters in United States are more extreme which causes unstable polar vortex which send cold arctic air into the jet stream and make winter colder in southern pole.

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A mutation in a gene that controls mitosis in cells may cause? a) cancer. b) cystic fibrosis. c) albinism. d) meiosis.

harkovskaia [24]

The answer is a) cancer.

Cells must control mitosis (cell division) in order to maintain normal cell function. If something happens to the control of mitosis, the healthy cells will divide uncontrollably. These new cells are cancer cells and they are also out of control. They will continue to divide uncontrollably, so the mass of the cancer cells will grow.
Regarding other choices:
- cystic fibrosis is an inherited disorder of lungs and digestive system,
- albinism is a congenital disorder characterised by the absence of pigment in the skin and hair,
- meiosis is cell division resulting in the reduction of a chromosome number in half.

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3 years ago

All cells are contained within a membrane called the:

soldier1979 [14.2K]

Answer:

D. phospholipid bilayer

Explanation:

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3 years ago

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Feliz [49]

That would be Dinitrogen sulfide i believe :)

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2 years ago

Answer Explore It! #1 through #4 Pls help me with this because I’m confused.

marta [7]

Answer:

Explore It #1

1) There are 12 consumers in this food web.

2) This food web had 2 producers.

Explore It #2

1) The Greenfly eats the berries. The berries are eaten by a grasshopper.

2) The snake eats the frog. The frog eats the grasshopper.

Explore It #3

1) The Frog eats a dragonfly.

The Snake eats the frog.

The Ladybug eats the greenfly.

Explore It #4

1) A snake eats a lizard. The Owl eats a lizard.

2) A shark eats a tuna. The Blue whale eats a group of krill.

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2 years ago

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What did the Hershey and chase experiment show about bacteriophages?

Iteru [2.4K]

Answer:

The correct answer is A bacteriophages inject only DNA into the bacteria.

Explanation:

Bacteriophages are a specific type of virus that infect bacteria.During the course of infection bacteriophage releases an enzyme known as lysozyme which creates a hole in the cell wall of the bacteria.

After doing that(creating a hole) bacteriophage inject its DNA inside the bacterium.

The injected DNA undergo gene expression by utilizing the gene expression machinery of bacteria which ultimately result in the formation of coat protein.The DNA is then packed within the coat protein to form progeny phages.The progeny phages then disrupt the cell wall and get released from the bacterium in search of a new host.

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2 years ago