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9966 [12]
3 years ago
10

Help?!!!!!!!!????!????

Biology
1 answer:
melomori [17]3 years ago
6 0

Answer:

Suns Output - Can Vary

Greenhouse Effect - Atmosphere Traps Heat

Ice Age - Coldest Phase Of Climate Cycle

Greenhouse Gases - Atmosphere Traps Even More Heat

Explanation:

You’re welcome :)

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How does a coronal mass ejection (CME) affect the solar wind?
brilliants [131]

Answer:

Option A

Explanation:

Corona is defined by the strong magnetic fields. When these strong magnetic fields confine solar atmosphere and produces violent bubble of gases then it is said to cause coronal mass ejection (CME).  

When a CME passes through the solar wind, it causes production of high velocity solar energetic particles that follow magnetic field lines and passes through the space between the Sun and the Earth. The charged particle added by CME intensifies the solar wind.  

Hence, option A is correct

4 0
3 years ago
Transcription chain elongation is thought to generate ____ supercoils ahead of the transcription bubble and _____ supercoils beh
frosja888 [35]

Answer:

a. positive; negative

Explanation:

Transcription is the process of forming an RNA molecule from a DNA template molecule. In this process, the strands of DNA separate and one serves as a template for RNA, while the other is inactive. At the end of the transcript, the tapes that have been split back together again.

The transcription process is divided into three steps: initiation, stretching and termination

During the stretching phase, transcription chain elongation occurs. In this phase the enzyme called RNA polymerase starts to move through the DNA molecule, unwinding its helix and producing an increasingly lengthened RNA molecule. The already transcribed DNA is rewound almost immediately, recomposing its double helix. This process is called the elongation phase.

During this process, it is believed that positive supercoils  are generated ahead of the transcription bubble and  and the negative supercoils behind it.

6 0
3 years ago
A neuromuscular junction is a junction between a_________ and a ___________. A neuromuscular junction is a junction between a___
garri49 [273]

Answer:

myofibril bulbous end of axon and skeletal muscles fibres.

Explanation:o

It represents the  chemical synapse  of the axon bulbous ends  of the motor neuron ( motor end plate) and the skeletal Muscle fibres.

The influx of calcium ions into the bulbous ends leads to the fusion  and empty of the vesicles containing neurotransmitters into the synaptic cleft.

The Neurotransmitters binds to the receptors on the muscles membrane to allow the transmission of action potential ( PSIP or  PSEP)across the synaptic gap  to the muscles fibers  to initiate  their  contraction or relaxation.

5 0
3 years ago
In an experiment, Mendel grew 633 green pea plants with either wrinkled seed-coats (dominant) or smooth (recessive). If the rati
ikadub [295]

Answer:

B) 211

Explanation:

211 times 3 equals 633

3 0
3 years ago
Read 2 more answers
To amplify and express a gene of interest, it must first be cut out of the chromosomal DNA and inserted into what? A) restrictio
Papessa [141]

The right answer is C) vector

In molecular biology and genetic engineering, vectors are DNA molecules that allow the propagation of sequences of interest. These are chimeric DNA molecules such as plasmids or artificial bacterial chromosomes, containing an origin of replication and one or more genetic markers. The origin of replication allows the maintenance of the vector in the target cell during generations.

5 0
3 years ago
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