List the 2 subgroups and 3 examples of food from esch group

Vegetables and legumes/beans.

Fruit.

Grain (cereal) foods, mostly wholegrain and/or high cereal fibre varieties.

Lean meats and poultry, fish, eggs, tofu, nuts and seeds and legumes/beans.

Milk, yoghurt cheese and/or alternatives, mostly reduced fat.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )