Characteristics and classification of living organisms Flashcards
What must all living organisms do
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
Definition of movement
An action caused by the organism to change position or place
Definition of respiration
The chemical reactions that break down nutrient molecules in living cells to release energy for metabolism
Definition of sensitivity
The ability of an organism to detect changes in the environment
Definition of growth
a permanent increase in size and dry mass by an increase in cell number or cell size or both
Definition of reproduction
the processes that make more of the same kind of organism
Definition of excretion
the removal from organisms of toxic materials, the waste products of metabolism (chemical reactions in cells including respiration) and substances in excess of requirements
Definition of nutrition
the taking in of materials for energy, growth and development; plants require light, carbon dioxide, water and ions; animals need organic compounds, ions and usually need water
Definition of species
A group of organisms that can reproduce to give birth to fertile offspring
In the bi-nominal system, what letter case is the genus and species
Genus is capital
Species is lower-case
What is the sequence of classification
Kingdom, phylum, class, order, family, genus, species
Characteristics of mammals
Hair Four-chambered heart Placenta mammary glands Different types of teeth
Characteristics of birds
Feathers four chambered heart wings beak lay eggs with hard shells
Characteristics of amphibians
Smooth skin
lay eggs with no shells in water
Characteristics of fish
Scales, lay eggs with no shells in water
