Answer:
the extra chromosome is "y"
Answer:
Some nervous systems don't include enough Alveoli, and researchers says that MIGHT be good for a person.
Explanation:
i read this on my news, but I'm not quite sure if it is true. I feel like lacking Alveoli actually might kill you....
Answer:
What does it mean for a cell to have an optimal pH range?
it will only function properly at a neutral pH of 7.
Explanation:
Every cells performs best at optimum pH which is neutrality. Acidity or alkalinity affect cell's performance which calls for optimum range in order to get the best performance
Answer:
Mutation
Explanation:
A mutation can be described as any change which occurs in the DNA of an organism. These mutations can be beneficial or harmful for a species of organisms. Mutations are one of the reasons that variations arise among the organisms of a species. If a certain kind of mutation is favored by natural selection, then it can increase in the allele frequency and might completely eradicate the previous wildlife characteristics of a species.
Inside the stem are xylem and phloem they transport food and water so I believe the answer is A
