Concept explainers
Introduction:
The different types of vectors allow pollination. The pollination can be brought about by wind, insects, animals and so on. The abscission is the natural falling of leaves, flowers and fruits as a result of senescence.
Explanation of Solution
Pollination is the process by which the pollen grain, male gamete, disperses and attaches to the female receptacle to trigger fertilization. The pollination can take place through various vectors and environmental agents. Pollination is the dispersal of the male gametes or the pollen grain through various agents that allow it to reach the receptacle of the female gametophyte. It can take place with the help of insects, animals, wind and additional structures present in the pollen.
Pollination is the process when the pollen grains reach the female gametophyte and fertilizes the ovule.
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Chapter 27 Solutions
EBK BIOLOGY: CONCEPTS AND APPLICATIONS
- _______ is the arrival of pollen on a receptive stigma.arrow_forwardPollens allow sperm to fly instead of swim. true or falsearrow_forwardPollen grains are derived from a microsporocyte, developed inside the microsporangia of an anther, and are supposed to contain 2 sperm cells and a tube nucleus. O True Falsearrow_forward
- a gymnosperm ________ develops into an embryo within a seed.arrow_forwardThere are two locations in which the gynoecium interacts chemically with the pollen and pollen tube and can either allow the pollen tube to grow or prevent it from growing. What are these two locations? O Style and megagametophyte Stigma and ovule Stigma and style Stigma and megagametophyte Style and ovulearrow_forwardAngiosperm flowers are comparable to gymnosperm strobes, because both are composed of groups of __________ and __________.arrow_forward
- Write if it is true or false and if it's false, kindly change and put the correct answer from the underlined word. Question 18Angiosperms would have naked seeds and are well-known for producing cones. Question 24Antipodals are the main site of attachment when the pollen tube reaches the embryo sac.arrow_forwardWhich of the following is mismatched? anther - female stigma - female pollen - male ovule - female stamen - malearrow_forwardDescribe the functions of each structure within the anther (vascular bundles, parenchyma, pollen sac, anther wall, tapetum, and pollen grains) What is the similarities and differences between the anther and the male cone of the pinearrow_forward
- Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning