Chapter 1:characteristics of organism Flashcards
Name 7 characteristics of organisms
1-movement
2-respiration
3-Sensitivity
4-growth
5-reproduction
6-excretion
7-nutrition
What is movement
an action by an organism or part of an organism causing a change of position or place
What is respiration
the chemical reactions in cells that break down nutrient molecules and release energy for metabolism
What is sensitivity
the ability to detect and respond to changes in the internal or external environment
What is growth
a permanent increase in size and dry mass
What is reproduction
the processes that make more of the same kind of organism
What is excretion
the removal of the waste products of metabolism and substances in excess of requirements
What is nutrition
the taking in of materials for energy, growth and development
How are organisms classified?
By the features that they share
Definition of species
a group of organisms that can reproduce to produce fertile offspring
What is the binomial system
naming species as an internationally agreed system in which the scientific name of an organism is made up of two parts showing the genus and species
What do all vertebrates have in common
Backbones
Name features common in birds
-feathers
-four chambered heart
-wings
-beak
-lay eggs with hard shells
Name features common in amphibians
-smooth skin
-lay eggs with no shells in water
Name features common in fish
-scales
-lay eggs with no shells in water
