Gen Bio II

review of first lecture presentation PPT

A living thing

Organization and information, need for energy source and reproduction and evolution

Organization and information

living things are born and living things die, as long as they maintain organization it is alive, once it breaks it results in death

Homeostasis

Constant internal environment

allostasis

Maintaining a constant internal environment in the face of constant change, it is only possible via adaptation.

Living things impose templates to impose order on nonliving things.

This template is DNA. This template makes proteins that create structure, function, and metabolism, and it is copied through reproduction.

DNA

the prime substance of life itself.

Need for and energy source:

all living things require constant input of energy to survive, w/o input = death.

Growth and development:

All living things are capable of growth, which is an individual getting larger over time.

Response to the environment:

Even the simplest living things are capable of responding to the environment.

Humans are Heterotroph

Process food/energy thats originally captured by other living things.

Autotroph

organisms that make their own food from simple.

A none supernatural hypotheses advanced by alexander oparin in 1922

The origin of life.

Biological populations

many individuals of a single specie

biological communities

population of organisms tend to assemble