We get weaker because put yourseld undersoemthing but not too long bc youll pass out but youll notice youll get weaker. so theres your answer buddy.
The keystone species is the one at the bottom of the pyramid, if we look at it like a pyramid. If the grass dies, then the deer cannot get food and die, and the predator cannot eat and dies, and the whole ecosystem can fall apart.
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment and are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
Hope this helps :))
Answer B: RNA has Uracil, DNA has Thymine
