• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Protista, Fungi, and Plantae
Protista, Fungi, and Plantae

... a. Which generation is dominant? Gametophyte or Sporophyte? b. Sketch a fern frond (sporophyte) and a mature gametophyte. c. Indicate which generation produces spores, and which produces gametes. 17. Where does meiosis occur in the above life cycle? 18. Why are ferns still limited to a tropical habi ...
Plants and Animals in Ecosystems
Plants and Animals in Ecosystems

... also flap and ruffle their feathers, stomp the ground, and make sounds such as snorts or growls. When a sandhill crane is frightened by a nearby predator, it spreads its wings, sticks out its body as if it were about to attack, and walks toward the predator. At other times it will go into a “crouch ...
Plant Structure, Growth & Reproduction
Plant Structure, Growth & Reproduction

... Figure 31.11B ...
Principles of Biology ______Lake Tahoe
Principles of Biology ______Lake Tahoe

... C. Ovules and production of eggs 1. seed plants retain megaspore within the parent sporophyte (Fig. 30.3) 2. integuments envelope and protect megasporangium 3. megasporangium, megaspore and integuments are called ovules 4. inside each ovule, a female gametophyte develops from a megaspore and produce ...
Reproduction in Plants 12
Reproduction in Plants 12

... the vegetative parts of a plant. After a certain period of growth, most plants bear flowers. You may have seen the mango trees flowering in spring. It is these flowers that give rise to juicy mango fruit we enjoy in summer. We eat the fruits and usually discard the seeds. Seeds germinate and form ne ...

Ferns
and
Conifers LAB: Lab Atlas Chapters 7 and 8

Ferns
and
Conifers LAB: Lab Atlas Chapters 7 and 8

... upward
from
the
rhizome
are
the
megaphylls
(called
sporophylls
if
there
are
sori
on
them),
 leaves
or
fronds.

Each
megaphyll
is
on
a
petiole.

Note
the
veins
of
vascular
tissue
running
 through
the
leaflets.

On
the
undersides
of
some
of
the
megaphyll
leaves
are
sporangia,
which
 are
in
clusters
ca ...
fact sheet - About The Garden
fact sheet - About The Garden

... GROWTH RATE ...
seed - ScienceToGo
seed - ScienceToGo

... The gymnosperms have “naked” seeds not enclosed by ovaries and consist of four phyla: (Do not memorize!) ...
Modes of Reproduction
Modes of Reproduction

... 1. What is the dominant phase in the life cycle of an angiosperm? A: Sporophyte phase (diploid phase). 2. What is meant by heterospory? Mention the two types of spores developed in an angiospermic plant? A: Production of different kind of spores by a species is called Heterospory. In Angiosperms the ...
grasses - apswarrnambool.org.au
grasses - apswarrnambool.org.au

... Habitat: One of the most common, widespread and conspicuous grasses in Australia, found mainly in grasslands, woodlands and open forests. Description: Kangaroo grass is a drought-resistant, deep-rooted, erect tussock forming perennial grass with stalked clusters of green and purple flower heads, whi ...
Chapter 30 PowerPoint
Chapter 30 PowerPoint

... – Integuments become seed coat ...
Document
Document

... – Integuments become seed coat ...
A. Kingdom Fungi – p. 526-542
A. Kingdom Fungi – p. 526-542

... 8. Describe three functions of roots. (p.579) 9. Describe four functions of stems. 10. Describe three functions of leaves 11. Name and describe the function of root hairs, epidermis, and vascular tissue. 12. Describe and give the function of the two kinds of vascular tissue: xylem and phloem. 13. Di ...
Section 16.1 - CPO Science
Section 16.1 - CPO Science

... • Plants started out living in water, an ideal environment that supported cells and ...
Whitetop - Asotin County
Whitetop - Asotin County

... grayish-green, shaped like arrowheads and clasp the stem. The flowers are white and appear in April and May along the Snake River and as late as early June in the higher elevations of the county. The flowers form a flat-topped appearance and are easily recognized from a distance. Plants typically do ...
Scotch broom - Jefferson County
Scotch broom - Jefferson County

... The WEED WRENCHTM is a tool designed to remove tap-rooted plants. It can be used on older broom plants that are too large to hand-pull. Contact the Noxious Weed Control Board at (360) 379-5610 ext 205 for information on borrowing or buying these tools. CUTTING with hand tools or machines is most eff ...
lesson 6: plant reproduction
lesson 6: plant reproduction

... As the endosperm and the plant embryo develop, the ovule will harden and form a seed coat. Some flowers start out with multiple ovules, so they will end up with multiple seeds. (Our “average” flower picture had only one ovule, so it would make only one seed.) While the ovules are turning into seeds ...
userfiles/153/my files/30_lecture_presentation?id=3265
userfiles/153/my files/30_lecture_presentation?id=3265

...  Many species are pollinated by insects or animals, while some species are wind-pollinated  A flower is a specialized shoot with up to four types of modified leaves called floral organs:  Sepals, which enclose the flower  Petals, which are brightly colored and attract pollinators  Stamens, whic ...
Seeds to Seedling PowerPoint
Seeds to Seedling PowerPoint

... Using page 331, read about seeds. As you are reading, complete your chart on seeds. Answer these questions as well: 1. What are the three parts of a seed? 2. How do seeds sprout? ...
LECTURE 6: EVOLUTION OF LAND PLANTS
LECTURE 6: EVOLUTION OF LAND PLANTS

... A thallus produces male or female umbrella-shaped structures which produce antheridia (containing sperms) or archegonia (containing egg). After fertilization, the zygote grows right on the umbrella-shaped structure and produces spores through meiosis. Each spore produces male or female thallus (diff ...
Grow your Own Herbs
Grow your Own Herbs

... It was hung up on the wall, providing a great vertical way to grow plants. Herbs are easy to grow, but you must select the proper location to grow them. Most herbs need a sunny, warm location. The oils, which account for the herbs’ flavor, are produced in the greatest quantity when plants receive si ...
Lab 1: Emergence of Seedlings
Lab 1: Emergence of Seedlings

... Watch the seeds for changes. In a day or two the seed coats will start to split, and you’ll see the root tip sticking out. Scientists call that part the radicle. Watch it dive into the crystal clay to become the main root. Eventually, it will branch out to become the root system. In order to sprout, ...
Early Plant Development
Early Plant Development

... search team went on to examine longitudinal cell divisions that fill in the gaps as cell division causes files of cells to extend outward from the meristem. The researchers set out to determine the probability of such longitudinal anticlinal cell division occurring in the three types of plants shown ...
Jr Sr Plant Part Study Guide - Yankton County 4-H
Jr Sr Plant Part Study Guide - Yankton County 4-H

... A gas given off into the air by animals when they breathe. It is taken up by plants and used in photosynthesis. A thickened, fleshy stem with thin, papery leaves surrounding it; Example: gladiolus. See petals. The leaves of a plant embryo, which enlarge and store nutrients to feed the young plant af ...
Jr Sr Plant Part Study Guide
Jr Sr Plant Part Study Guide

... A gas given off into the air by animals when they breathe. It is taken up by plants and used in photosynthesis. A thickened, fleshy stem with thin, papery leaves surrounding it; Example: gladiolus. See petals. The leaves of a plant embryo, which enlarge and store nutrients to feed the young plant af ...
< 1 ... 49 50 51 52 53 54 55 56 57 ... 141 >

Seed



A seed is an embryonic plant enclosed in a protective outer covering known as the seed coat.It is a characteristic of spermatophytes (gymnosperm and angiosperm plants) and the product of the ripened ovule which occurs after fertilization and some growth within the mother plant. The formation of the seed completes the process of reproduction in seed plants (started with the development of flowers and pollination), with the embryo developed from the zygote and the seed coat from the integuments of the ovule.Seeds have been an important development in the reproduction and spread of gymnosperm and angiosperm plants, relative to more primitive plants such as ferns, mosses and liverworts, which do not have seeds and use other means to propagate themselves. This can be seen by the success of seed plants (both gymnosperms and angiosperms) in dominating biological niches on land, from forests to grasslands both in hot and cold climates.The term ""seed"" also has a general meaning that antedates the above—anything that can be sown, e.g. ""seed"" potatoes, ""seeds"" of corn or sunflower ""seeds"". In the case of sunflower and corn ""seeds"", what is sown is the seed enclosed in a shell or husk, whereas the potato is a tuber.Many structures commonly referred to as ""seeds"" are actually dry fruits. Plants producing berries are called baccate. Sunflower seeds are sometimes sold commercially while still enclosed within the hard wall of the fruit, which must be split open to reach the seed. Different groups of plants have other modifications, the so-called stone fruits (such as the peach) have a hardened fruit layer (the endocarp) fused to and surrounding the actual seed. Nuts are the one-seeded, hard-shelled fruit of some plants with an indehiscent seed, such as an acorn or hazelnut.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report