1: Characteristics and classification of living organisms Flashcards
MRSGREN
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
Movement
An action by an organism or part of an organism causing a change of position or place.-
Respiration
The chemical reactions in cells that break down nutrient molecules and release energy for metabolism.
Sensitivity
the ability to detect or sense stimuli in the internal or external environment and to make appropriate responses.
Growth
A permanent increase in size and dry mass by an increase in cell number or cell size or both.
Reproduction
As the processes that make more of the same kind of organism.
Excretion
Removal from organisms of the waste products of metabolism (chemical reactions in cells including respiration), toxic materials, and substances in excess of requirements.
Nutrition
taking in of materials for energy, growth and development.
What animals and plants require for nutrition
Plants require light, carbon dioxide, water and ions.
Animals need organic compounds and ions and usually need water.
Two or more species can be linked back in evolutionary time to another ancient species. Both have this species as a _____________
common ancestor
What animals have pentadactyl limb
tetrapod vertebrates (amphibians, reptiles, birds, and mammals)
A method of sorting organisms into groups based on their common features.
Classification
A group of closely related organisms that can reproduce to give fertile offspring.
Species
An internationally agreed system that gives scientific names to organisms. The name has two parts – the first part is the genus and the second is the species.
Binomial system
