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3 years ago

3 different ways in which carbon is added to the atmosphere by natural means

Biology

1 answer:

-BARSIC- [3]3 years ago

5 0

(The 3 examples are:)

~ CO2 from burning fossil fuels

~ gas (methane) leaks from underground gas pipes

~ methane from rotting material in landfills

(Other ones)
~ combustion of fossil fuels (oil, coal, and gas)

~ deforestation (decreasing amount of plants that remove CO2 from the atmosphere)

~ industrial production that uses petroleum based products (mineral/metal production)

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On your way home from Wawa, you find a piece of slime on the sidewalk. Upon further analysis under the microscope at home, you o

Kisachek [45]

Answer:

not enough infor to determine if it is alive but with just that it is a no

Explanation:

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3 years ago

A rose bush has waxy leaves and petals that make it difficult for herbivores to eat.

weqwewe [10]

Answer:

False

Explanation:

The wax acts as a sealant to reduce the stress on the roses during transit and up until the time they can be planted and established into ground soil.

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2 years ago

What are the effects of the event on each of the earths four spheres

Fynjy0 [20]

Answer:

An event can cause changes to occur in one or more of the spheres, and/or an event can be the effect of changes in one or more of Earth's four spheres. This two-way cause and effect relationship between an event and a sphere is called an interaction. Interactions also occur among the spheres.

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3 years ago

What happens during the initiation step of DNA transcription? A ribosome attaches to the initiation codon of a completed mRNA st

Amanda [17]

Answer:

A portion of the DNA unwinds and RNA polymerase attaches to the DNA within the transcription bubble.

Explanation:

Transcription is the process in which DNA template is used to synthesize mRNA.

There are three steps of transcription:

Initiation

It is the process in which a portion of DNA unwinds and RNA polymerase binds to the promotor region on the DNA.

Elongation

It is the process in which RNA polymerase moves along the DNA template and synthesizes mRNA. During this process, unwinding of double stranded DNA takes place.

Termination

As the RNA polymerase moves along the DNA template, it finally reaches a termination signal and then stops synthesizing. It is followed by the detachment of the newly formed mRNA and RNA polymerase from the DNA.

QUESTION:

A ribosome attaches to the initiation codon of a completed mRNA strand.

This is the incorrect answer choice as this process does not happen in the process of transcription. This event happens in the process of translation in which mRNA is used to synthesize proteins or amino acids. mRNA attaches to ribosome during this process.

RNA polymerase moves along the template strand of the DNA creating an mRNA strand.

This is the incorrect answer choice as this event takes place in the process of elongation.

A portion of the DNA unwinds and RNA polymerase attaches to the DNA within the transcription bubble.

This is the correct answer choice as this event takes place in the process of initiation of transcription

The mRNA detaches from the RNA polymerase as the RNA polymerase leaves the DNA strand.

This is the incorrect answer choice. This event takes place in the event of termination of transcription.

3 0

3 years ago

During what amphibian life cycle stage does the organism return to water with regular frequency to reproduce? metamorphic stage

ratelena [41]

Answer:

adult stage

Explanation:

adult reproduces

3 0

3 years ago