Answer:
Pollen grains land on the stigma and move down the pollen tube into the ovary.
Humans' and rats' incisors are larger than their other teeth, though humans' incisors are only marginally larger. They perhaps share this characteristic to help them adapt to an omnivorous diet.
A DUI; driving under influence
Explanation:
Each step in a food chain or web is called a trophic level
