Vocab Flashcards
What’s the definition of external stimulus?
A change in environment outside of the organism
What’s the definition of feedback mechanism?
a response within a system that influences the activity of that system
What’s the definition of force?
a push or pull that can change the position of an object/material
What’s the definition of geotropism (gravitropism)?
growth that happens in orgnaisms in response to gravity such as the downward growth of plant roots
What’s the definition of homeostasis?
the bodys ability to keep the internal balance of the body stable
What’s the definition of internal stimulus?
a change within the organism
What’s the definition of motion?
a change in the position of an object
What’s the definition of phloem?
conducting tissue in plants that transports nutrients through the plant
What’s the definition of phototropism?
the growth that happens in organisms in response to light (a stem bending towards a light source)
What’s the definition of root system?
a below-ground part of a plant that includes the organs such as roots, tubers, and rhizomes
What’s the definition of shoot system
an above-ground part of a plant that includes the organs such as leaves, buds, stems, flowers, and leaves (if there are any)
What’s the definition of stable?
balanced; unchanging
What’s the definition of stimulus?
a thing or event that causes a response or reaction
What’s the definition of transpiration?
the process of water moving through plants and evaporating from the leaves and stems into the atmosphere
What’s the definition of tropism?
turning of all or part of an organism in a particular direction in response to an external stimulus
