What is the main idea of this text?Pollination causes plants to reproduce fruits and seeds because it is when the stamen, or male part, of a flower is moved to the stigma, or female part, of a flower and the plant is fertilized.Hummingbirds and butterflies are examples of animals that are pollinators that we may overlook in our daily lives, but they have a very important role in plant and crop reproduction.Pollinators play an important role in making sure many flowering plants and food crops can grow, and because their populations are declining, humans are working to protect them.In 2010, honey bees and other insect pollinators contributed to tens of billions of dollars of crop production in the United States and their populations are declining due to various factors.

“Examples of crops that are pollinated include apples, squash, and almonds. Without the assistance of pollinators, most plants cannot produce fruits and seeds. The fruits and seeds of flowering plants are an important food source for people and wildlife.”What conclusion can you draw from this evidence?Pollinators like hummingbirds, bats, bees, beetles, butterflies, and flies are nutritious food for humans.Declining populations of pollinators may impact plant populations and the things that humans can eat.Honey bees are protected by the U.S. government because they help make billions of dollars.Pollinators carry and eat fruits and seeds, and leave pieces of them around so new plants can grow.

Pollinators—animals like bees and butterflies that carry pollen between plants—are vitally important to an ecosystem by helping plants mate and reproduce. ------ the population of bees and other pollinators has been in steady decline due to the use of toxic pesticides and the destruction of natural habitats. A new study suggests that this has caused plants to evolve to fertilize their own seeds more often.Which choice completes the text with the most logical transition?Moreover,eliminateHowever,eliminateSometimes,eliminateHence,

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

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.

What is pollination? Name the different agencies of pollination.