2 What is Biology? Biology is the study of living things or LIFE! What do all living things have in common?Movement? DNA? Cells?
3 Commonalities All living things have 6 characteristics. These are found in all living things from baby to adult
4 1st Principle – Evolution Natural Selection- facilitator of evolution – characteristics most favorable – live on.ALL living “things” have evolved or are currently evolving.These changes eventually lead to changes and different populations that have diverse characteristics.
5 2nd Principle - Homeostasis Ability of organisms to maintain an internal balance.All organisms “control” their internal systems in response to their surroundings.Examples: sweating, stomata, anoles, adrenaline, shivering.
6 3rd Principle - Organization All living systems are highly organized forms of matter.Most living things are made up of mostly just a few atoms – carbon, nitrogen, oxygen, hydrogen, phosphorus and sulfurCells- the basic structural unit of living matter.
7 cont’d Organization… All living things NEED energy! Energy is needed to build and repair highly organized structures – cells!Dead things have their organization broken down.
8 4th Principle - Continuity The ability of an organism to transfer it’s DNA, and give it to it’s offspring – REPRODUCTION!Sexual or asexual.Genetic information is carried/stored by DNA – a long and complex molecule.DNA is just a rearrangement of the same pieces and parts – wardrobe ex.
9 5th Principle - Development The ability of an organism to grow and develop.Change of formation/function of structures.Ex. – humans and plants, p. 126
10 6th Principle - Ecology All living things interact in a web of life. Some live in communities.Some help each other, others hurt.Interaction and Interdependence in living systems.
12 Naming ThingsSwede botanist Carolus Linnaeus is credited for the current system – in Latin.The largest group will be the Kingdom – the 5 Kingdoms…ex. AnimaliaThe organism is then sub-divided into a phylum of that kingdom…ex. Chordata
13 …cont’d NamingAfter a phylum – divided into a class with similar characteristics….ex. MammaliaClass then divided into an order…ex. Carnivora
14 More Naming Order then divided into a family….ex. Canidae Family then divided into a Genus…ex. CanisGenus then sub divided into species…ex. familiaris
15 How to Remember King Kingdom Phillip Phylum Came Class Over Order For FamilyGrape GenusSoda Species