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:
Plicae, villi and microvilli increase the surface area for he absorption of nutrients
Answer: Solid
Since it cuddled all together in the cylinder it must be an solid maybe a block
I think you might be thinking of the different folding patterns of proteins. It begins with primary structure, then secondary, then tertiary, and finally quaternary.
It’s the third one because if an organism dies off because it’s not evolved to match an environment that’s natural selection
