Subject:
Applied Science, Life Science, Biology
Material Type:
Module
Level:
Community College / Lower Division, College / Upper Division
Provider:
Rice University
Tags:
Accessory Fruit, Aggregate Fruit, Androecium, Angiosperm, Angiosperm Reproduction, Angiosperm Sexual Reproduction, Annual, Antipodal, Apomixis, Artificial Plant Reproduction, Asexual Reproduction, Bat Pollination, Biennial, Bird Pollination, Coleoptile, Coleorhiza, Complete Flower, Cross-pollination, Cutting, Development of the Seed, Dormancy, Double Fertilization, Endocarp, Endosperm, Epicotyl, Epigeal Germination, Exine, Exocarp, Female Gamete, Female Gametophyte, Fertilization, Flower Reproduction, Flower Structure, Fruit Development, Fruit Dispersal, Fruit Type, Germination, Grafting, Gravitropism, Gymnosperm Reproduction, Gymnosperm Sexual Reproduction, Hypocotyl, Hypogeal Germination, Incompatibility, Incompatibility Gene, Insect Pollination, Intine, Layering, Male Gametophyte, Megasporangium, Mesocarp, Micropropagation, Micropyle, Microsporangium, Microsporophyll, Monocarpic, Multiple Fruit, Natural Plant Reproduction, Nectar Guide, Perennial, Perianth, Pericarp, Plant Death, Plant Fertilization, Plant Lifecycle, Plant Lifespan, Plant Reproduction, Plant Reproductive Development, Plant Reproductive Process, Plant Reproductive Structure, Plant Sexual Reproduction, Plumule, Polar Body, Polar Nuclei, Pollination, Pollination by Bats, Pollination by Birds, Pollination by Insects, Pollination by Water, Pollination by Wind, Polycarpic, Radicle, Scarification, Scutellum, Seed Development, Seed Dispersal, Seed Germination, Self-pollination, Senescence, Simple Fruit, Suspensor, Synergid, Tegmen, Testa, Vernalization, Water Pollination, Wind Pollination
License:
Creative Commons Attribution-NonCommercial 4.0
Language:
English
Introduction

Introduction

Section 1

 Photo A shows a bee drinking nectar from a flower wide, flat purple flower. Photo B shows a hummingbird drinking nectar from a long, tube-shaped red flower. Photo C shows a butterfly drinking nectar from a flat, wide orange flower.
Plants that reproduce sexually often achieve fertilization with the help of pollinators such as (a) bees, (b) birds, and (c) butterflies. (credit a: modification of work by John Severns; credit b: modification of work by Charles J. Sharp; credit c: modification of work by "Galawebdesign"/Flickr)

Plants have evolved different reproductive strategies for the continuation of their species. Some plants reproduce sexually, and others asexually, in contrast to animal species, which rely almost exclusively on sexual reproduction. Plant sexual reproduction usually depends on pollinating agents, while asexual reproduction is independent of these agents. Flowers are often the showiest or most strongly scented part of plants. With their bright colors, fragrances, and interesting shapes and sizes, flowers attract insects, birds, and animals to serve their pollination needs. Other plants pollinate via wind or water; still others self-pollinate.