What is the function of the stigma on a flower?A.It provides a supply of stored nutrients for the seed.B.It helps spread seeds away from the parent plant.C.It has a sticky surface that helps trap pollen grains.D.It attracts birds, bees, and bats to help with pollination.SUBMITarrow_backPREVIOUS

12The researchers are fascinated with the structure and shape of bee stigmas, the feminine organs responsible for harvesting and transmitting pollen. Aware of the bees' pivotal role in plant reproduction, they seek to decode how the distinct traits of bee stigmas enhance their competence in pollination. The hypothesis put forward by the researchers suggests that extended bee stigmas enhance the efficiency of bees in amassing and disseminating pollen. They initiated an extensive investigation comparing diverse bee species boasting different stigma configurations to substantiate their proposition. The researchers meticulously examined the volume of pollen clinging to the stigmas post the bees' visitation to specific plant species.12 Mark For Review12Which finding, if true, would most directly support the researcher’s hypothesis?A) Pollen from a particular flower species was transferred more effectively by local bees compared to other floral types.B) The extended stigmas tend to fracture more effortlessly than the shorter ones due to a heightened moment of inertia.C) Bees possessing stigmas with reduced and more readily accessible structures exhibit a significantly augmented pollen load compared to bees with protracted stigmas.D) Bees with stigmas with elongated, branched, and complexly folded configurations demonstrate a considerably increased pollen haul compared to bees with simpler, abbreviated stigmas.

Occasionally, the pollen from a flower can land on its own stigma or on the stigma of another flower on the same plant - this is known as self-pollination

Describe what would happen when pollen grains lands on the stigma.

Explain how the structure and function of pollen allow bees to help with plant reproduction.

What is the primary function of flower petals? Would you expect a species that does wind pollination to have prominent petals? Why or why not?