Prickly Pear
... perennial, succulent plants of American origin which belong to the cactus family (Cactaceae). It is from the fruit, which is very spiny and pear shaped, that the plant has been given the name of prickly pear. The spines are very sharp and may occur singly or in a group from each areole. In some spec ...
... perennial, succulent plants of American origin which belong to the cactus family (Cactaceae). It is from the fruit, which is very spiny and pear shaped, that the plant has been given the name of prickly pear. The spines are very sharp and may occur singly or in a group from each areole. In some spec ...
Lecture 09, Gymnosperms - Cal State LA
... Gymnosperms Sporophylls: modified leaves that contain sporangia (spore-producers) ...
... Gymnosperms Sporophylls: modified leaves that contain sporangia (spore-producers) ...
Melissa`s talk on the fossil record
... A result of the rise of oxygen? Chordates (will explain later) Most organisms from this period, trilobites, etc. died off First vascular plants from algae, then ferns, then seed plants, gymnosperms, finally angiosperms Ferns do not evolve into seed plants—they are an evolutionary dead end! ...
... A result of the rise of oxygen? Chordates (will explain later) Most organisms from this period, trilobites, etc. died off First vascular plants from algae, then ferns, then seed plants, gymnosperms, finally angiosperms Ferns do not evolve into seed plants—they are an evolutionary dead end! ...
The Plant Kingdom
... Seed plants are complex vascular plants with roots, stems, leaves, and seeds. They reproduce by means of seeds that are produced inside a fruit or in cones. The seed plant division is further divided into angiosperms, or flowering plants, and gymnosperms, or conifers. Seed plants became common in th ...
... Seed plants are complex vascular plants with roots, stems, leaves, and seeds. They reproduce by means of seeds that are produced inside a fruit or in cones. The seed plant division is further divided into angiosperms, or flowering plants, and gymnosperms, or conifers. Seed plants became common in th ...
Chapter 22-Gymnosperms Key innovations in the evolution of land
... The extinct plant Archeopteris, which lived about 300 million years ago, represents a group that were intermediate between the ferns and the gymnosperms. ...
... The extinct plant Archeopteris, which lived about 300 million years ago, represents a group that were intermediate between the ferns and the gymnosperms. ...
1 of 20: Name the waxy layer of many leaves to
... each question and agree upon one correct answer. The group with the most correct answers will win. ...
... each question and agree upon one correct answer. The group with the most correct answers will win. ...
From Cell to Seed p. 134-‐138 1. List 4 things plants do for us. 2.
... cells that used H 2 O, CO2, and sun to make food released oxygen as waste (photosynthesis). 8. What is the composiKon of ozone? three atoms of oxygen (O) 3 9. What did the ozone layer make possible? Explain. It helped organisms live on land because i ...
... cells that used H 2 O, CO2, and sun to make food released oxygen as waste (photosynthesis). 8. What is the composiKon of ozone? three atoms of oxygen (O) 3 9. What did the ozone layer make possible? Explain. It helped organisms live on land because i ...
Plant and Animal Life Cycles
... into water and do not provide parental care. Offspring must be able to care for themselves from the time of birth. • Most birds and mammals typically care for their offspring. Birds feed and protect their young while mammals feed with mother’s milk since their young are helpless for a long ...
... into water and do not provide parental care. Offspring must be able to care for themselves from the time of birth. • Most birds and mammals typically care for their offspring. Birds feed and protect their young while mammals feed with mother’s milk since their young are helpless for a long ...
Angiosperms - OpenStax CNX
... the leaves, and ower parts that are arranged in a three- or six-fold symmetry. True woody tissue is rarely found in monocots. In palm trees, vascular and parenchyma tissues produced by the primary and secondary thickening meristems form the trunk. The pollen from the rst angiosperms was monosulcat ...
... the leaves, and ower parts that are arranged in a three- or six-fold symmetry. True woody tissue is rarely found in monocots. In palm trees, vascular and parenchyma tissues produced by the primary and secondary thickening meristems form the trunk. The pollen from the rst angiosperms was monosulcat ...
Week 9
... cuticle (waxy layer that prevents water loss). Commercially, most of our lumber and paper pulp comes from the wood of conifers. D) Seed bearing vascular plants: Angiosperms The angiosperms are recognized as the “flowering plants.” In addition to pollen and seeds, the angiosperms developed two other ...
... cuticle (waxy layer that prevents water loss). Commercially, most of our lumber and paper pulp comes from the wood of conifers. D) Seed bearing vascular plants: Angiosperms The angiosperms are recognized as the “flowering plants.” In addition to pollen and seeds, the angiosperms developed two other ...
Plants
... All leaves are the main food making part of the plant Leaves use a gas from the air carbon dioxide. The leaves use the suns energy +carbon dioxide + water to make food. Leaves have chlorophyll which traps energy from the sunlight. ...
... All leaves are the main food making part of the plant Leaves use a gas from the air carbon dioxide. The leaves use the suns energy +carbon dioxide + water to make food. Leaves have chlorophyll which traps energy from the sunlight. ...
Influence of Temperature on Pollen Germination
... same plant, it is called self- pollination. Many plants have this ability to self-pollinate while others do not. 2. Some plants have incompatibility (self-sterility), meaning there is a genetic factor preventing pollen tubes from growing in the style of the same plant. ...
... same plant, it is called self- pollination. Many plants have this ability to self-pollinate while others do not. 2. Some plants have incompatibility (self-sterility), meaning there is a genetic factor preventing pollen tubes from growing in the style of the same plant. ...
Flower Dissection Lab
... What are some adaptations of flower petals to help attract pollinators? ...
... What are some adaptations of flower petals to help attract pollinators? ...
Kingdom Plantaenew
... Can reproduce without water; male gametophytes are contained in pollen grains; fertilization occurs by pollination ...
... Can reproduce without water; male gametophytes are contained in pollen grains; fertilization occurs by pollination ...
PLANT DIVERSITY EVOLUTION OF LAND PLANTS
... • Ferns were giant and very abundant. • They contributed to the increase in oxygen in Earth’s atmosphere and fossil fuels that we now use for energy. ...
... • Ferns were giant and very abundant. • They contributed to the increase in oxygen in Earth’s atmosphere and fossil fuels that we now use for energy. ...
Kalanchoe blossfeldiana
... Facts about Kalanchoes • Native to Madagascar • Flowering pot plant • Especially valued in Europe for its long lasting postharvest quality • Also used in hanging baskets, dish gardens, gardens, and as cut flowers ...
... Facts about Kalanchoes • Native to Madagascar • Flowering pot plant • Especially valued in Europe for its long lasting postharvest quality • Also used in hanging baskets, dish gardens, gardens, and as cut flowers ...
Plant Evolution & Diversity – Ch. 22-25
... Formerly only 2 classes: monocots & dicots. Now 4 clades (evolutionary lines): ...
... Formerly only 2 classes: monocots & dicots. Now 4 clades (evolutionary lines): ...
Plants part 1
... Key adaptations to success on land: Seeds – protect embryo & provide food for initial growth Pollen – airborne dispersal; Sporopollenin in walls of spores Sporophyte dominant Vascular tissues – phloem & xylem; specialization of parts of plant for specific functions (true roots, stems, and ...
... Key adaptations to success on land: Seeds – protect embryo & provide food for initial growth Pollen – airborne dispersal; Sporopollenin in walls of spores Sporophyte dominant Vascular tissues – phloem & xylem; specialization of parts of plant for specific functions (true roots, stems, and ...
Chapter 22
... seed plants do not require water for fertilization of gametes. Q: Why was this an advantage? A: They could live further away from water • Adaptations that allow seed plants to reproduce without water include flowers or cones, the transfer of sperm by pollination, and the protection of embryos in see ...
... seed plants do not require water for fertilization of gametes. Q: Why was this an advantage? A: They could live further away from water • Adaptations that allow seed plants to reproduce without water include flowers or cones, the transfer of sperm by pollination, and the protection of embryos in see ...
Kingdom Plantae
... Have seeds not protected by fruit No fruit Cones present Example: Largest group is the conifers which includes pines, spruce, cedar ...
... Have seeds not protected by fruit No fruit Cones present Example: Largest group is the conifers which includes pines, spruce, cedar ...
Reproduction, Growth and Development in Living
... – Asexual: formation of offspring from a single parent – Sexual: two parents join together to form a new individual ...
... – Asexual: formation of offspring from a single parent – Sexual: two parents join together to form a new individual ...
Plant Structure and function
... These chemical reactions take place inside the cells near the chloroplasts. Chloroplasts are filled with Chlorphyll which makes the plants green. ...
... These chemical reactions take place inside the cells near the chloroplasts. Chloroplasts are filled with Chlorphyll which makes the plants green. ...
Nerve activates contraction
... Angiosperms and animals have shaped one another’s evolution Ever since they colonized the land, animals have influenced the evolution of terrestrial plants and vice versa. The fact that animals must eat affects the natural selection of both animals and plants. Natural selection must have favored ...
... Angiosperms and animals have shaped one another’s evolution Ever since they colonized the land, animals have influenced the evolution of terrestrial plants and vice versa. The fact that animals must eat affects the natural selection of both animals and plants. Natural selection must have favored ...
Seven-Son Flower - Arnold Arboretum
... When flowering is over, the calyces (collective term for sepals) do not fall off but persist and continue to grow. The fruits develop from the flowers; light green at first, they ripen to a rosepurple. A large cluster of sepals is more spectacular than the blossoms at the peak of flowering. The rich ...
... When flowering is over, the calyces (collective term for sepals) do not fall off but persist and continue to grow. The fruits develop from the flowers; light green at first, they ripen to a rosepurple. A large cluster of sepals is more spectacular than the blossoms at the peak of flowering. The rich ...
Flowering plant
The flowering plants (angiosperms), also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by characteristics including flowers, endosperm within the seeds, and the production of fruits that contain the seeds. Etymologically, angiosperm means a plant that produces seeds within an enclosure, in other words, a fruiting plant.The ancestors of flowering plants diverged from gymnosperms around 245–202 million years ago, and the first flowering plants known to exist are from 160 million years ago. They diversified enormously during the Lower Cretaceous and became widespread around 120 million years ago, but replaced conifers as the dominant trees only around 60–100 million years ago.