Answer:
The sun's solar radiation and the wind's movements.
Explanation:
The heat from the sun and air movement is responsible for the weather on Earth. All-weather takes place in the lowest layer of the Earth's atmosphere, which is a gaseous layer that surrounds the planet. The heat of the sun causes the air in this layer to warm to various temperatures in different regions.
The right answer is C) Make sure electrical hazards are resolved immediately.
The different electrical risks are:
Risk of direct contact with an electrified part
Risk of indirect contact with a conductive part accidentally switched on
Risk of "remote" electrification (without contact), by priming
Risks of fire and exposure, due in particular to arcing during a short circuit, and the accumulation of static electricity causing sparks.
C. To live in a group with other organisms
The second one
One gene for a particular trait
Answer:
C) no, the final mRNA contains only exons, the introns were removed
Explanation:
Exons are the coding areas while the introns are non-coding areas. Both of these are the sequences of nucleotide within a gene.
RNA splicing is a process which usually occurs as the RNA matures, causing the removal of introns ( non coding areas of the RNA ) i-e they will not be expressed in the final messenger RNA, while exons continue to form covalent bonds with one another to form a mature mRNA.
So in the given scenario, Upon comparison, the mRNA is found to contain 1,000 fewer bases than the DNA sequence because the introns were removed by RNA splicing.
Hence option C) no, the final mRNA contains only exons, the introns were removed is correct.
