1. Gene- a portion of DNA which codes a specific hereditary trait
2. Allele- alternate forms of a specific gene
3. Trait- A genetic characteristic of the individual
4. Chromosome - a thread-like molecule....
Answer:
D it is taken in from the air
Explanation:
Carbon dioxide is in the air and plants use it to make food.
It developed everyones body
Look up Dawrin's theory of evolution. Basically, fossil records show how life forms change over time through evolution.
No, it is nowhere near "homeostasis." Perhaps it is a homeostatic mechanism or a natural immunological response of the body.