Answer:
Over our lifetime, our DNA can undergo changes or mutations that result in differences in the DNA sequence and may affect the proteins that are made. Mutations can occur as a natural consequence of errors in DNA replication or as a result of exposure to environmental factors such as smoking, sunlight or radiation.
Explanation:
Answer:
a. The model delivers amino acids to the ribosome so they can
be added to the developing pepetide.
Explanation: tRNA is transfer ribonucleic acid. Its help to aid translation process. They have the appropriate anti codon that is a complement of mRNA i.e messanger RNA they Therefore give the appropriate amino acids to ribosome to form the appropriate polpeptide chain. Each amino acid has its own tRNA.
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Answer:
I think answer is 3. Disposable syringes and blood tube
Hazardous medical waste that needs to be carefully disposed of by incineration. Items include clinical waste such as used syringes and needles, used swabs, plasters and bandages.
1. Greenhouse gases are compounds that are able to trap heat in the atmosphere, keeping the Earth's surface warmer than it would be if they were not present. The gases are the fundamental cause of the greenhouse effect. Increase in the amount of greenhouse gases in the atmosphere enhances the greenhouse effect which is creating global warming and consequently the climate change. These gases are mainly carbon dioxide; metahne, nitrous oxide, and flourinated gases.
2. Carbon dioxide enters the atmosphere from animals and plants through the process of respiration and the burning of fossil fuels from industries. .
Animals and plants get rid of carbon dioxide gas through respiration. Carbon may also move from fossil fuels to the atmosphere when fuels are burned. Burning of fuels to power factories, power plants, cars and trucks makes carbon to enter the atmosphere as carbon dioxide.
It is option D that is <span>Brownfields tend to be cooler and drier than other areas.
Hope it helps </span>
