Leaves on a tree can have different sizes and shapes depending on the amount of light they receive. 1. Codominance
2. Environmental influence on gene expression
3. Incomplete dominance
4. Maternal inheritance
5. Multiple alleles
6. Polygenic traits

Explanation:

Why do tree leaves have different shapes? The shape of a tree's leaves are a response to the tree species' long term ecological and evolutionary histories. An ecosystem's limiting factors may also modify the finished form and shape of a tree's leaves

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

the answer is c.mitochondria. glad to .