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Lab Topic 15 - MDC Faculty Home Pages
Lab Topic 15 - MDC Faculty Home Pages

... • Compared to ferns, gymnosperms have additional adaptations • Further reduction of the gametophyte – Greater development of diploid sporophyte – Pine tree = sporophyte + tiny gametophytes living in the cones – Gametophytes are dependent on and protected by the parent sporophyte ...
Diversity in the Plant Kingdom I. Introduction
Diversity in the Plant Kingdom I. Introduction

... egg. Thus evolved sperm cells protected within pollen grains that could instead use wind, and later, unwitting animals to be carried to the egg. • And what to do with the next generation? Conditions on land are much less predictable than in water, possibly unfavorably dry or hot after fertilization ...
Unit 4 Part 1 Outline Plant Diversity
Unit 4 Part 1 Outline Plant Diversity

... The better-known gymnosperms are evergreen, cone-bearing trees called conifers. Adaptations and Uses of Conifers Conifers are adapted to cold, dry weather. Conifers supply much of the wood used to construct buildings and to manufacture paper. Other Gymnosperms Cycads have large, finely divided leave ...
Presentation part 2
Presentation part 2

... • Conifers are the most common gymnosperms, with over 500 species alive today. This group includes pines, spruces, firs, cedars, sequoias, redwoods, junipers, and yews. ...
Kingdom Plantae
Kingdom Plantae

... and a diploid zygote is formed. This begins the sporophytic generation again. The zygote divides mitotically to form and embryo and eventually a tiny sporophytic plant. These can often be seen still attached to the notch area of the prothallus. ...
Plant Life Cycle
Plant Life Cycle

... With water, oxygen and the right temperature the seed swells and begins to make a new plant ...
The Seed Plants - FacultyWeb Support Center
The Seed Plants - FacultyWeb Support Center

... and female cones. The male cones are very small and occur in clusters near the tips of branches; male cones are quite fragile and persist only one season as they grow, produce pollen, and release mature pollen grains into the air. Female cones are larger, and persist for several years ...
Qualities of Plants
Qualities of Plants

... Pine, fir, and spruce trees are all conifers that have special leaves called needles. Conifers are vascular plants and reproduce using cones and seeds. ...
Redwood and Pacific Rainforest Sections
Redwood and Pacific Rainforest Sections

... redwood is heavily logged for its rot-resistant wood, the giant sequoia has very brittle wood making it difficult to use for similar purposes; This evergreen conifer can grow over 200 feet high with a nearly straight trunk for the first dozens of feet. The cinnamon colored fibrous, pitch-free bark i ...
RED SQUIRREL – Sciurus vulgaris – Iora rua
RED SQUIRREL – Sciurus vulgaris – Iora rua

... This tree is very similar to its close relative, the Downy birch – even experts find it hard to tell the difference sometimes! It grows up to thirty metres tall. Its leaves are about 2.5 – 7 cm in length, and they have very pointed teeth along the edges. It loses its leaves in the late autumn. Its b ...
Science Unit A: Chapter 1 – Plant Structure and
Science Unit A: Chapter 1 – Plant Structure and

...  All plants are alike in one way. They use water, carbon dioxide, and energy from sunlight to make sugar.  Classifying – grouping things by a similar or different characteristic.  Reproduce – make more of the same kind  Plants can be classified into two groups: plants that make seeds and plants ...
Class - Educast
Class - Educast

... are gymnosperms in phylum Coniferophyta. ...
Gymnosperms and the Seed Fig. 15.7
Gymnosperms and the Seed Fig. 15.7

... Cruz, CA. It is locally dominant in its small native range: 3 spots along the California coast, and two Mexican Islands. It is also the most widely planted tree in the world for forestry, being the primary timber tree in New Zealand, Australia, Chile, Argentina, South Africa, and elsewhere. In some ...
Ch30 PowerPoint LN
Ch30 PowerPoint LN

... Multiple fruit: the flowers of this fruit are so close together that there fertilized ovaries fuse as they develop and become one fruit; pineapples. ...
Review Chapter 22
Review Chapter 22

... b. are divided into two groups, the monocots and dicots. c. were the first plants to develop vascular tissues. d. were the first plants to develop flowers to attract insects. The first organisms that did not require water for reproduction were the a. ferns. b. lycophytes. c. cycads. d. flowering pla ...
The Secret Life of Flowering PlantsStudyGuide
The Secret Life of Flowering PlantsStudyGuide

... 6. What is an ovule? Where is it located and what is its structure in the young ovary ? 7. What do the spores (megaspores) within an ovule form? Do they all survive? Explain. 8. Explain how a spore (megaspore) inside the ovule gives rise to the female tissue (embryo sac). Pollination and fertilisati ...
week 5, gymnosperms, angiosperms and flowering plants
week 5, gymnosperms, angiosperms and flowering plants

... remarkable discovery was made that the coontie is pollinated by beetles, that feed on both the male and female cones. ...
Document
Document

... 3. Spores produced in sporangia • Sporangia = ...
PPT #2
PPT #2

... Pollen attaches to the stigma of the pistil (female) and travels down the pollen tube to the ovules. Fertilization occurs when the male (pollen) and female cell (ovule) nuclei join. ...
Plant Reproduction Notes
Plant Reproduction Notes

... The flower forms from a bud on the end of a pedicel or stem. Sepals cover the developing flower to protect it. The flower has coloured petals to attract insects. Flowers have both 'male' and 'female' reproductive parts. The male part (called the stamen) consists of a long filament with the pollen ma ...
Lecture notes on regeneration ecology
Lecture notes on regeneration ecology

... Most seeds are dormant when they are dispersed in the fall. Will not germinate until exposed to cold. Cold temperatures degrade hormone (Abscisic acid) that inhibits germination. Cold/wet can also help rupture seed coat. Let water in. ...
Trees and Forests – Tree Types
Trees and Forests – Tree Types

... The term “evergreen” comes from the fact that the needles appear not to turn brown and fall to the ground at the approach of winter. ...
Angiosperm life cycle
Angiosperm life cycle

... Microspore mother cells/ microsporocytes (2n) undergo meiosis ...
1] Question - New Path Learning
1] Question - New Path Learning

... © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com. ...
Chapter 16 – Plant reproduction
Chapter 16 – Plant reproduction

... Seed and fruit formation  The fertilised egg cell forms the seed.  The ovary wall will swell with food to form the fruit.  The fruit protects and nourishes the seed. ...
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Pinophyta



The conifers, division Pinophyta, also known as division Coniferophyta or Coniferae, are one of 12 extant division-level taxa within the Kingdom Plantae (Viridiplantae) and 10 within the extant land plants. Pinophytes are gymnosperms, cone-bearing seed plants with vascular tissue. All extant conifers are woody plants with secondary growth, the great majority being trees with just a few being shrubs. Typical examples of conifers include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews. The division contains approximately eight families, 68 genera, and 630 living species.Although the total number of species is relatively small, conifers are of immense ecological importance. They are the dominant plants over huge areas of land, most notably the boreal forests of the northern hemisphere, but also in similar cool climates in mountains further south. Boreal conifers have many wintertime adaptations. The narrow conical shape of northern conifers, and their downward-drooping limbs, help them shed snow. Many of them seasonally alter their biochemistry to make them more resistant to freezing, called ""hardening"". While tropical rainforests have more biodiversity and turnover, the immense conifer forests of the world represent the largest terrestrial carbon sink, i.e. where carbon from atmospheric CO2 is bound as organic compounds.They are also of great economic value, primarily for timber and paper production; the wood of conifers is known as softwood.Conifer is a Latin word, a compound of conus (cone) and ferre (to bear), meaning ""the one that bears (a) cone(s)"".
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