Grasses belong to the biological class , and their seeds are a rich source of . Legumes belong to the biological class , and their seeds are a rich source of .

Grasses: Monocotyledon; carbohydrates

Legumes: dicotyledon; protein

Explanation:

Grasses belong to the biological class monocotyledon, and their seeds are a rich source of carbohydrates. Legumes belong to the biological class dicotyledon, and their seeds are a rich source of protein.

Grasses are monocotyledonous plants with narrow leaves that grows from the bottom. They most times short in height except for some grasses like bamboo that has the ability to grow very tall. There seeds are a rich source of carbohydrates such as rice, oat, corn and wheat

Grasses can be used as pasture for livestock, for construction, for beer making, for curbing erosion.

Legumes are dicotyledonous plants. Their seeds are a rich source of protein and grown primarily for human consumption. Examples of the seeds of legumes are lentils, chickpeas, beans, peanuts, soybeans, alfalfa etc.

The play an important role in crop rotation because of the presence of the nitrogen fixing bacteria in their root nodules.