UNIT 1 CHAPTER 5-HIGHER LEVEL ECOLOGY Flashcards
WHAT IS COMPETITION ?
OCCURS WHEN ORGANISMS ACTIVELY STRUGGLE FOR A RESOURCE THAT IS IN SHORT SUPPLY
WHAT ARE THE FACTORS OF POPULATION CONTROL ?
COMPETITION
PREDATION
PARASITISM
SYMBIOSIS
what in intra-specific competition ?
it is competition that takes place amongst members of the same species
what is inter-specific competition ?
occurs between two members of different species
what is contest competition ?
when there is an active physical contest between two individual organisms
what is scramble competition ?
it is when all of the competing individual’s get some of the resource
what is predation ?
it is the catching, killing and eating of another organism
what is a predator ?
it is an organism that catches, kills and eats another organism
what is the prey ?
the prey is the organism that is eaten by the predator
what is parasitism ?
it occurs when two organisms of different species live in close association and one organism(THE PARASITE) obtains its food from, and to the disadvantage of the second organism(THE HOST)
what is symbiosis ?
this occurs when two organisms of different species live in close association and at least one of them benefit
what are the factors affecting the human population numbers ????
WAR
FAMINE
CONTRACEPTION
DISEASE
what is an adaptation ????
an adaptation is any alteration that improves an organism’s chances of survival and reproduction
what are the factors that control population >??/
- competition
- predation
- parasitism
- symbiosis
