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ch23
ch23

... with them. In the process they pick up the pollinium and transfer it to another flower. Beetle-pollinated flowers. Beetles have a more developed sense of smell than the visual sense. Flowers are usually white or dull in color with a strong scent, which could be fruity, spicy or foul. The beetles may ...
cell types
cell types

... Re-read today’s lecture, highlight all vocabulary you do not understand, and look up terms. ...
Solanum carolinense
Solanum carolinense

... S. carolinense is a perennial weed. It reproduces mainly by its rhizomes, but may also reproduce by seeds. It has a well developed underground system, with a main root going deep into the soil, to 2.4 m. At a depth of 15-25 cm, rhizomes (more than 1 m long) emerge from the main root and provide new ...
Reproduction occurs when plant fragments break
Reproduction occurs when plant fragments break

... RAKING with a rake attached to a rope may reduce plant density, but will probably not remove the root mass. This method is not allowed in certain lakes, because of potential impact to sockeye spawning areas. Carefully gather and remove any plant fragments created. LOWERING the water level can desicc ...
Prairie Blue Eyes Daylily
Prairie Blue Eyes Daylily

... Prairie Blue Eyes Daylily will grow to be about 24 inches tall at maturity extending to 32 inches tall with the flowers, with a spread of 24 inches. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years. This perennial does best in full sun to parti ...
Curriculum links - From Seed to Table
Curriculum links - From Seed to Table

... • Identify and describe the functions of different parts of flowering plants: roots, stem/trunk, leaves and flowers • Explore the requirements of plants for life and growth (air, light, water, nutrients from soil, and room to grow) and how they vary from plant to plant • Explore the part that flo ...
Defensive Planting Information
Defensive Planting Information

... Plants. The careful choice of plants, with suitable qualities can, where appropriate, be used to enhance physical protection. The use of thorny, dense growing shrubs planted around the perimeter of grounds and against suitable parts of buildings can be used to deter unwelcome visitors. Strategic pla ...
seed plants
seed plants

... Introduction – Gymnosperm means “naked seed” (From the Greek: gymnos = naked; sperm = seed) More advanced than ferns – do not have spores, they have seeds. The seeds of the gymnosperms lack a protective enclosure (unlike flowering plants which have flowers and fruit). Examples of gymnosperms: Conife ...
You Light Up My Life
You Light Up My Life

... Bryophytes are nonvascular plants with flagellated sperm that require liquid water to reach and fertilize the eggs. A sporophyte of these plants develops within gametophyte tissues. It remains attached to the gametophyte and receives some nutritional support from it. ...
5799 Cover.qxd
5799 Cover.qxd

... Capsules splitting in half during late winter to release tiny winged seeds. Ecology. Common around old homes, on roadsides, riparian areas, and forest margins in infested areas. Infrequently planted in plantations. Spreads by wind- and water- dispersed seeds. Invades after fire, harvesting, and othe ...
Common Insect Pests of Cucurbits
Common Insect Pests of Cucurbits

... Melon aphids usually feed on the underside of leaves but may attack the soft growing tips. They suck the juices from the leaves and tips, causing leaf and tip curl, distortion and premature death of the leaf or growing tip. Melon aphids leave a sticky substance called honeydew on the leaves and grow ...
towards a new evolutionary theory
towards a new evolutionary theory

... noise’, but it is not evolution”. However, in the opinion of Stebbins and Ayala (1981), the “selectionist ” and the “neutralist” views of molecular evolution are competing hypotheses within the framework of the synthetic theory of evolution. A nother example of the incorporation of new ideas into th ...
2. Dry fruits
2. Dry fruits

... 1. More than 240,000 species of flowering plants 2. 11 species provide 80% of world's food 3. Flowers unique characteristic of this division 4. Flowers range in size from tiny duckweed flowers, 0.1 mm long, to enormous Rafflesia flowers of Indonesia (1 meter in diameter) 5. Enormous varieties of flo ...
GLOSSARY OF TERMS abdomen Posterior
GLOSSARY OF TERMS abdomen Posterior

... surface). Rhizomes have nodes, similar to above-ground stems, and they can form roots and shoots at these nodes to produce new plants. rodent An animal belonging to the order Rodentia under the class Mammalia (mammals). Most rodents are small, furry animals with short legs and a long tail. Their mos ...
Amethyst Mist Coral Bells
Amethyst Mist Coral Bells

... Amethyst Mist Coral Bells features dainty spikes of pink bell-shaped flowers rising above the foliage from early to mid summer. It's attractive crinkled lobed leaves remain burgundy in colour with distinctive silver spots throughout the year. The fruit is not ornamentally significant. Landscape Attr ...
The Tundra
The Tundra

... • The yellow Tundra Flower is just a flowering shrub, also known as the shrubby cinquefoil • The Bearberry is known for being best liked by bears. ...
THE SEED
THE SEED

... -Water: Sometimes the plant provides their seeds with nice spongy coverings that have water within them. They float on the water and when they reach land, they sink into the sand and grow. -Hitchhikers: Some plants provide their seed with a special means of transportation, such as Burrs. -The seed i ...
Botany CHAPTER 23
Botany CHAPTER 23

... plants flourished in the warm, humid climate of the late Paleozoic era ...
CDT Test - Dallastown Area School District Moodle
CDT Test - Dallastown Area School District Moodle

... Rice cultivation, cattle ranching, the filling of landfills, and coal mining are some of the activities that lead to increased levels of methane gas in the atmosphere. Which statement describes how increased levels of methane gas will most likely affect the global environment? A. It can cause ozone ...
Rubella Japanese Skimmia
Rubella Japanese Skimmia

... Rubella Japanese Skimmia features showy clusters of fragrant white flowers with pink overtones at the ends of the branches in mid spring, which emerge from distinctive red flower buds. It has attractive dark green foliage. The glossy narrow leaves are ornamentally significant but remain dark green t ...
Invasive Plants of Concern in Ohio
Invasive Plants of Concern in Ohio

... five-petaled, spring flowers are clustered along the upper portions of the branches in the leaf axils. These develop into round dangling fruit capsules which start out green, turn yellow orange, then tan. In the winter months the capsules split open to reveal a red, sectioned fruit. Invasive orienta ...
Growing Plants Notes - St Thomas Aquinas RC Secondary School
Growing Plants Notes - St Thomas Aquinas RC Secondary School

...  Intermediate seeds e.g. asters can be sown directly from the packet or by taking a pinch between thumb and forefinger and carefully scattering them over the surface of the compost.  Fine seeds e.g. begonia should be mixed with silver sand. This allows the seeds to be spaced out more easily and re ...
Uglynest caterpillar
Uglynest caterpillar

... Mature larvae are about 20 mm long and greenish yellow with black heads. Larvae pupate in the nest. Life history: Overwintered eggs begin to hatch in May. Larvae live together in dense nests of webbing, leaves and twigs, and may be present until September. Adults emerge from July until September. Th ...
Happy Returns Daylily
Happy Returns Daylily

... facer plants in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years. ...
Balsamorhiza sagittata (arrow
Balsamorhiza sagittata (arrow

... underground caudex, or persistent woody stem, to form dense rosettes. The bright yellow flowers are usually arranged singly on long stems and the stem leaves are mostly lanceolate in shape and alternate in position as they advance up the stem. The root is a taproot that may be as large as four inche ...
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Plant evolutionary developmental biology



Evolutionary developmental biology (evo-devo) refers to the study of developmental programs and patterns from an evolutionary perspective. It seeks to understand the various influences shaping the form and nature of life on the planet. Evo-devo arose as a separate branch of science rather recently. An early sign of this occurred in 1999.Most of the synthesis in evo-devo has been in the field of animal evolution, one reason being the presence of elegant model systems like Drosophila melanogaster, C. elegans, zebrafish and Xenopus laevis. However, in the past couple of decades, a wealth of information on plant morphology, coupled with modern molecular techniques has helped shed light on the conserved and unique developmental patterns in the plant kingdom also.
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