Please could I get full answers ASAP

a) this means that his weight was 25% more than baby boys his age and 75% less than baby boys his age. He's in the low percentage of weight and his weight is smaller compared to a large percentile of other baby boys.

b) at 8 months old. Where most baby boys' weight would be more than 8 kg and his is barely over 6 kg. This shows that the estimated increase of atleast 500g weight of a baby is not displayed by his chart and it shows he's undergrowth.

the answer is yes, they are born/created, then they grow to their limit then produce offspring, then die.

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.