And orange tree is an example of a what because it contains seeds in fruit conifer flowering plant moss fern

Flowering plant

Explanation:

Flowering plants :

Flowering plants are the dominant plant form on land which reproduce by sexual and asexual means.

Their most distinguishing feature is their reproductive organs, which are  flowers. Sexual reproduction in flowering plants includes

i) Production of male and female gametes,

2) Transfer of the male gametes to the female ovules in a process called pollination.

After pollination occurs, automatically fertilization happens.

Since orange tree follows the above procedure it is a

Flowering plant

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).