Group 10This is a featured page

Section 1
seed plants: those plants that make seeds
flowers: a plant with a stem,petals, and has a center full of pollination
cones: there are separate male and female cones for reproduction
leaves: allow water to exit from the plant
seeds: contain an embryo that will form a new plant
stems
: provide a pathway for movement of water and food
roots: absorb water and dissolved nutrients
capillary action: movement of a liquid up a narrow tube;happens when attraction of liquid particles to each other is less than their attraction to the walls of the tube
photosynthesis: the process by which use energy, carbon dioxide, and water to make their own food
diffusion: the movement of particles from an area of high concentration to an area with low concentration
active transport: the process in which large particles cross the membrane;active transport requires energy
transpiration: the plant process that pulls the water up from the roots
cellular respiration: food+oxygen+carbon dioxide+water+energy that can be used by living things
osmosis: in cells, the movement of water across the cell membrane
germination: bacterias can be harmful of helpful
seed stage: seed - starts to grow
seedling stage: seedling - grows and develops reproductive structures
adult stage: adult - pollinate
pollination: the process in which male and female parts of a plant joined to produce seeds
pollen: the male plant part of a seed plant that unites with the female part to produce a seed;pollen is produced by either flowers or male cones
ovule: the female part of a seed plant that joins with the male part to produce a seed; ovules are usually found inside an ovary
ovary: a protective structure on a seed plant that contains the ovule;ovaries are often in the center of a flower or on a female cone
pollinators: an organism that carries pollen from one flower to another
runners: long stems that grow along the soil of the surface and produce new plants
rhizomes: stems that grow underground stems and produce new plants
suckers: new plants that are produced from the roots of the parent plant
cuttings: a cut piece of a plant that is used to reproduce that plant;cuttings usually have a part of the stem and a few leaves
grafting: a technology to reproduce plants that involves attaching part of one plant to a second plant
adaptation: a change in an organism that makes it suited to a particular environent


Section 2
shelter: plants protect other organisms from weather and from predators
food production: plants make their own food from water, carbon dioxide, and sun light
soil: earth material composed of rock particles and decaying organic matter
erosion: the process that moves soil from one place to another
organisms: living things
food: stuff that is produced, then you eat it
fiber: fiber from plants provides many of the materials we use for shelter, and warmth
medicine: people in the olden days used plants to make medicine for internal problems
living resources: those living things that can be used to meet human needs
natural living resources: a living resource that has not been changed by humans and takes care of itself
managed living resources: a living resource that is being used by humans to meet our needs


Section 3
mineral particles: particles in soil that come from rock that has been broken down
organic particles: particles in soil that come from plants and animals that have died;humus is composed of organic particles
humus: partly decomposed material from plants and animals that once were living
sandy soil: sandy soil runs between your fingers and has very few lumps
clay soil: clay soil feels slippery when it is moist and you rub it between fingers
loam soil: loam soil is crumbly like moist cake and if you squeeze, it will not stick
organic fertilizer: a mixture of nutrients prepared from a natural source such as animal or plant waste
chemical fertilizer: a nutrient mix made from chemicals
irrigation: the practice
of applying water to crops
clearing: to plow the land for stuff such as farming or wells
plowing: the practice of cutting into the soil and turning over its top layer
crop rotation: the practice of planting a different crop in a particular field each year


Section 4
population: all individuals of one species living in the same area at the same time
yield: the amount of useful plant material produced per plant, or per area planted in a particular crop
hydroponics: a technology for growing plants in which the plant roots are placed in a nutrient solution instead of soil
conditions: sometimes we produce plants in artificial enviroments
artificial: fake or not living
species: living things of the same kind that are able to reproduce
variety: a group of organisms of the same species that has specific characteristics that can distinguish it from other varieties of that species
trait: a characteristic of an organism
selective breeding: a technology for reproducing mew varieties of an organism that involves choosing parents with desired traits in order to to produce offspring with these traits
genes: a tiny piece of material in a cells nucleus;each gene in a cell is responsible for the inheritance of certain traits or characteristics
genetic engineering: process in which single genes are added to a plants genetic material
offspring: the products of reproduction; i.e., the individuals produced by parents
consequences: something that you expect to happen
herbicide: a chemical that kills unwanted plants
pesticide: chemicals that are poisonous to insects
biological control: biological control tries to copy the way that population size is controlled in natural environments
resistant:
unintended consequences:
something that you didn't predict would result from what you did
enviromental management: the process of balancing the needs of humans with the needs of the enviroment
biodiversity: variety of different species living in an environment together
monoculture: the cultivation of a single crop on a farm or in a region or country

sustainable practices: somewhere, where many different plants can live ( example : a green house )




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foxywelder
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Latest page update: made by foxywelder , Mar 18 2009, 11:20 AM EDT (about this update About This Update foxywelder Edited by foxywelder

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