Question

question 16
the extract of which gymnosperm cone is used in weight loss?
pine tree
cycad
ginkgo
cphedra

Explanation:

Ephedra is a gymnosperm, and its extract (containing ephedrine) has been used in weight - loss products (though its use has regulatory restrictions in many places due to safety concerns). Pine tree cones' extracts aren't typically used for weight loss, cycads are gymnosperms but their cones aren't used for weight loss, and ginkgo (Ginkgo biloba) is a gymnosperm but its extract is more associated with cognitive and circulatory benefits rather than weight loss.

Answer:

D. ephedra