7th Grade Science Test 12 Final Review PART 2

structure formed by the leaves, twigs, flowers and fruit at the top of a fully grown tree

all the organisms of one species in an environment

any built - in knowledge that an animal is born with

the struggle against other organisms for needed resources

the system that uses hormones to control certain body functions

the information-storing substance that a cell's nucleus contains

A relationship in which one organism benefits and the other is neither helped nor harmed

the level of classification below kingdom

the foundation of modern science

a model that shows all the feeding relationships in an environment

a nutritional relationship in which one animal hunts another

the "outside skeleton" of an arthropod

a relationship in which organisms share only direct contact