Which group of animals was the first to adapt to life on land by developing large lungs, eggs with a waterproof shell, and scaly, waterproof skin?
a. amphibians
b. birds
c. reptiles
d. worms

The correct answer is reptiles.

The first land animal that were adapted to live on land were reptiles. The adaptation that took place in reptiles was because they live in water and on land .The waterproof skin was a adaptation to live in water. Their large lungs helped in the breathing. Eggs with waterproof shell so that they can lay eggs in the water.

All these adaptations in the reptiles helps them to survive better in any conditions.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.