Chapter 26
... The transfer of pollen grains from the anther to the stigma Pollination may be aided by wind, insects, and birds. In some instances, the colored petals act as a visual attractant for insects If pollination occurred in a dry environment, the pollen grain would not dehydrate (dry up) due to a thick wa ...
... The transfer of pollen grains from the anther to the stigma Pollination may be aided by wind, insects, and birds. In some instances, the colored petals act as a visual attractant for insects If pollination occurred in a dry environment, the pollen grain would not dehydrate (dry up) due to a thick wa ...
Seeds and their advantages
... embryo – Protection: Hard shell • 3) Allow dispersal – Carried by wind, water, animals ...
... embryo – Protection: Hard shell • 3) Allow dispersal – Carried by wind, water, animals ...
Chapter 22: Plants with Seeds
... The entire male gametophyte of seed plants is contained in a tiny structure called a pollen grain Sperm produced by this gametophyte do not swim through water to fertilize the eggs Instead, the entire pollen grain is carried to the female gametophyte by wind, insects, birds, and small animals The ca ...
... The entire male gametophyte of seed plants is contained in a tiny structure called a pollen grain Sperm produced by this gametophyte do not swim through water to fertilize the eggs Instead, the entire pollen grain is carried to the female gametophyte by wind, insects, birds, and small animals The ca ...
No Slide Title
... • Just remember this: • Male forms haploid tube cell nucleus and generative cell (will form two sperm cells) within pollen grain • Female forms haploid egg and two polar nuclei within embryo sac • (three haploid cells each, to simplify) ...
... • Just remember this: • Male forms haploid tube cell nucleus and generative cell (will form two sperm cells) within pollen grain • Female forms haploid egg and two polar nuclei within embryo sac • (three haploid cells each, to simplify) ...
Plant Diversity
... The largest of the gymnosperm phyla The cone is the reproductive structure Examples: pines, firs, spruces, junipers, cedars, and redwoods Most are evergreens Where we get much of our lumber and paper pulp Among the largest & oldest organisms on Earth ...
... The largest of the gymnosperm phyla The cone is the reproductive structure Examples: pines, firs, spruces, junipers, cedars, and redwoods Most are evergreens Where we get much of our lumber and paper pulp Among the largest & oldest organisms on Earth ...
Ch_9
... - most trees, some shrubs, vines; the largest and most diverse being the conifers that are evergreen and have cones, ex. pine tree. • Reproduction by cones that are covered with scales - male cones are smaller and produce pollen that contains sperm - female cones are larger and have the ovules that ...
... - most trees, some shrubs, vines; the largest and most diverse being the conifers that are evergreen and have cones, ex. pine tree. • Reproduction by cones that are covered with scales - male cones are smaller and produce pollen that contains sperm - female cones are larger and have the ovules that ...
Worksheet for Morgan/Carter Laboratory #16 “Plant Diversity II: Seed Plants”
... in the lab. Recall that cones contain clusters of sporangia. What important process occurs in the sporangia. c. Locate an ovulate and a pollen cone. Elongated male pollen cones are present only in the spring. The small, more rounded female cones (which look like miniature pine cones) are produced on ...
... in the lab. Recall that cones contain clusters of sporangia. What important process occurs in the sporangia. c. Locate an ovulate and a pollen cone. Elongated male pollen cones are present only in the spring. The small, more rounded female cones (which look like miniature pine cones) are produced on ...
LAB#9: SURVEY OF THE PLANT KINGDOM (Symbiosis, 2007)
... 25. Biologically speaking, what is the function of fruit? (a) It is where the male gametophyte develops. (b) It is a mechanism for the dispersal of seeds. (c) It provides structural support for the plant. (d) It provides nutrients to germinating seeds. (e) It attracts pollinators. 26. Why does it ma ...
... 25. Biologically speaking, what is the function of fruit? (a) It is where the male gametophyte develops. (b) It is a mechanism for the dispersal of seeds. (c) It provides structural support for the plant. (d) It provides nutrients to germinating seeds. (e) It attracts pollinators. 26. Why does it ma ...
SBI3U - Wrdsb
... -Eastern spruce -White pine -Douglas fir -Western red cedar -Juniper -Ginkgo - Vascular tissue ...
... -Eastern spruce -White pine -Douglas fir -Western red cedar -Juniper -Ginkgo - Vascular tissue ...
Ferns
and
Conifers LAB: Lab Atlas Chapters 7 and 8
... 1. Examine a living fern and note the underground stem or rhizome bearing roots (local fern stems are usually entirely underground or horizontal along the surface of the ground). Growing upward from the rhizome are the megaphylls (called sporophylls if there are sori on them), leaves or fronds. ...
... 1. Examine a living fern and note the underground stem or rhizome bearing roots (local fern stems are usually entirely underground or horizontal along the surface of the ground). Growing upward from the rhizome are the megaphylls (called sporophylls if there are sori on them), leaves or fronds. ...
1.3 Reproduction of Seed Plants
... insects, birds and bats to pollinate (transfer pollen). Pollinators come to flowers for food (nectar) and get covered in pollen. When the move onto another plant, they take the pollen with them. ...
... insects, birds and bats to pollinate (transfer pollen). Pollinators come to flowers for food (nectar) and get covered in pollen. When the move onto another plant, they take the pollen with them. ...
HM6 Science Unit A Chapter 1 Lesson 2 Outline - Spring
... 4) Its greenish-yellow leaves are fan-shaped and composed of two or more distinct lobes; the Latin species name biloba refers to this fact. 5) The common name of maidenhair tree pertains to the similarity of the leaves to those of maidenhair ferns (Adiantum species). 6) This plant is deciduous; in a ...
... 4) Its greenish-yellow leaves are fan-shaped and composed of two or more distinct lobes; the Latin species name biloba refers to this fact. 5) The common name of maidenhair tree pertains to the similarity of the leaves to those of maidenhair ferns (Adiantum species). 6) This plant is deciduous; in a ...
The Gymnosperms - Delaware Trees
... 2. “Naked Seeds,” usually formed on the scales of a cone 3. 4 Divisions within the Kingdom Plantae • We cover Pinophyta (conifers) and Ginkgophyta (ginkgo) ...
... 2. “Naked Seeds,” usually formed on the scales of a cone 3. 4 Divisions within the Kingdom Plantae • We cover Pinophyta (conifers) and Ginkgophyta (ginkgo) ...
On to plants with seeds
... larches, yews, junipers, cedars, cypresses, and redwoods. Many are large trees. Though there are only about 550 species of conifers, many of them are quite dominant where they occur. A forest of Douglas fir is shown below. • 70 genera, approx. 600 species • Microgametophyte develops as a pollen gr ...
... larches, yews, junipers, cedars, cypresses, and redwoods. Many are large trees. Though there are only about 550 species of conifers, many of them are quite dominant where they occur. A forest of Douglas fir is shown below. • 70 genera, approx. 600 species • Microgametophyte develops as a pollen gr ...
ANGIOSPERMS FLOWERING PLANTS
... 2. Pollen produced in and matures in anthers 3 Anther contains microsporangia or pollen sacs a. Microspore mother cells produce microspores-develop into pollen grains b. Mature microgametophytes 1. Two are sperm nuclei 2. Third is tube nucleus that grows into pollen tube 3.Pollen carried by numerous ...
... 2. Pollen produced in and matures in anthers 3 Anther contains microsporangia or pollen sacs a. Microspore mother cells produce microspores-develop into pollen grains b. Mature microgametophytes 1. Two are sperm nuclei 2. Third is tube nucleus that grows into pollen tube 3.Pollen carried by numerous ...
General Plant Life Cycle
... (diploid) – Begins when sperm fertilizes egg (zygote) – Zygote divide by mitosis to create a mature sporophyte – Meiosis produces haploid cells ...
... (diploid) – Begins when sperm fertilizes egg (zygote) – Zygote divide by mitosis to create a mature sporophyte – Meiosis produces haploid cells ...
Chpt 22 Plants with seeds - Kingdom Plantae
... o Found in tropical and subtropical areas • B) Ginkgoes – common during the time of the dinosaurs o Only one species left o Lose their leaves in winter • C) Conifer – commonly called evergreens o Most abundant gymnosperm o Leaves have adapted into long thin cuticle covered needles o They have 2 type ...
... o Found in tropical and subtropical areas • B) Ginkgoes – common during the time of the dinosaurs o Only one species left o Lose their leaves in winter • C) Conifer – commonly called evergreens o Most abundant gymnosperm o Leaves have adapted into long thin cuticle covered needles o They have 2 type ...
Jack Pine
... Used for cover and nesting by morning dove. Used as a food source by a variety of birds, squirrels, and porcupine. ...
... Used for cover and nesting by morning dove. Used as a food source by a variety of birds, squirrels, and porcupine. ...
Chapter 24 - S3 amazonaws com
... 2. all cells of a sporophyte are diploid 3. some cells can undergo meiosis to form haploid spores 4. some cells can undergo cell division to form haploid gametophytes 5. when a sperm fertilizes an egg, a diploid zygote is formed=sexual reproduction & it’s the 1st cell of the sporophyte stage 6. zygo ...
... 2. all cells of a sporophyte are diploid 3. some cells can undergo meiosis to form haploid spores 4. some cells can undergo cell division to form haploid gametophytes 5. when a sperm fertilizes an egg, a diploid zygote is formed=sexual reproduction & it’s the 1st cell of the sporophyte stage 6. zygo ...
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)"".