piano Flashcards
what is yield
yield means the amount of useful plant per plants
explain selective breeding
you would select two parents, each with a different desired trait and then breed them together (cross-pollination). plant their seeds and select the next-generation of seeds from offspring plants with the desired characteristics
what do we mean when we say something is sustainable
when something can be done or used without running out
what’s monoculture
the practice of growing only one type of crop in a particular area
identify two artificial environments discussed during this season
greenhouse + hydroponics
identify environmental variables that can be controlled in a greenhouse
temperature, irrigation
whats a artificial environment?
ykefgmjuy
whats biodiversity
the number of different species in an environment
whats biological control
using natural predators to control pest naturally
whats environmental management
the process of balancing the needs of humans with the needs of the environment
whats a gene
tiny piece of material in a cell’s nucleus
whats genetic engineering
process in which single genes are added to a plants genetic material
whats GMO
an organism whose traits have been changed by changing its DNA
whats a herbicide
a chemical that kills plants
pesticide
chemicals that are poisonous to species
species
living things of the same kind that are able to reproduce
trait
a characteristic of an organism
unintended consequence
results of an action that were not practiced or planned
varitey
a group of organisms of the same species that has specific characteristics that can distinguish it from other varieties of that species
hydroponics
a technology for growing plants in which the plant roots are placed in a nutrient solution instead of soil
describe two ways to increase plant yield
using a plant more efficiently
describe the difference between pesticides and herbicides
herbicides are chemicals that kill plants
pesticides are chemicals that kill insects
what are the consequences of using herbicides and pesticides
herbicides- some weeds are the food source of other living organisms
pesticides- some insects can become resistant and then the pesticide with become less useful
what are the benefits of using herbicides and pesticides
herbicides- they create beautiful lawns and flower beds
pesticides- kills those who pollinate crops
describe natural ways to control weeds and other pests that reduce crop yield
biological control- copies the way the population size is controlled in natural environments
