the plant process that pulls the water up from the roots
What is transpiration?
100
earth material composed of rock particles and decaying organic matter
What is soil?
100
the amount of useful plant material produced per plant, or per area planted in a particular crop
What is yield?
100
long stems that grow along the soil surface and produce new plants
What are runners?
200
the structure of the plant responsible for absorbing nutrients and water, and to anchor the plant
What are roots?
200
in cells, the movement of water across the cell membrane. Moving from high concentrations to low concentrations.
What is osmosis?
200
partly decomposed material from plants and animals that once were living
What is humus?
200
process in which single genes are added to a plant's genetic material
What is genetic engineering?
200
stems that grow underground and produce new plants
What are rhizomes?
300
the structure responsible for photosynthesis and water loss
What are the leaves?
300
the process in which large particles cross the cell membrane; requries energy
What is active transport?
300
practice of planting a different crop in a particular field each year
What is crop rotation?
300
a technology for controlling pests in which the natural predators of the pest are introduced into an environment to reduce their population size
What is biological control?
300
produced when the pollen grains land on the stigma
What is a pollen tube?
400
tiny openings in the cell membraneof plant cells; allows certain substances to move in and out of the cell
What are pores?
400
in a cell, the membrane that allows the movement of nutrients, water, gases, etc. in and out of the cell (be specific!)
What is a semi-permeable membrane?
400
particles in soil that come from plants and animals that have died
What are organic particles?
400
results of an action that were not predicted or planned
What are unintended consequences?
400
process in which male and female parts of a plant join to produce a seed
What is fertilization?
500
the structure responsbile for the production of pollen
What is the anther?
500
the process in which cells break down sugar particles into carbon dioxide, water and energy
What is cellular respiration?
500
material found in potting soil
What is vermiculite?
500
a technology for producing new varieties of an organism that involves choosing parents with desired traits in order to produce offspring with these traits
What is selective breeding?
500
the female part of a seed plant that joins wit the male part to produce the seed