Evolution- Theories of Evolution & Intro

Aristotle

earth and all living things were unable to change

georges-louis leclerc

believed species were changing over times

carl linnaeus and erasmus darwin

both proposed life changed over time

jean- baptiste lamarck

why species were adapted to their environment

georgies cuvier

believed species did not change

charles lyell

geolgoical change is slow and gradual rather then fast

what is a fact

a thing that is known or proven to be true

what is a theory

scientifcally acceptable or offered to explain a phenomen.

What is biological evolution

* the scientific theory that states that living things have separated from ancestors
* the idea that the universe has a history and that change over time has taken place

relationship between animals and plants? which came first?

plants can make their own food, animals cannot, therefore its easier for plants to go on land first.

Why would life have to arise BEFORE atmospheric oxygen?

because plants create oxegyn through the process of photosynthesis

why are facts important to theories

given the facts scientist can come up with theorys. scientist are presenting with facts and have to build explanations around them.

how old does science tell us the earth is

4\.6 billion years old

charles darwin

came up with the theory of evolution

what is inheritance of aqquired traits

* individuals can pass on offspring characteristics that they had acquired during their lives.


* organismd uses a body part so it gets bigger/stronger, which then gets passed down to next generation

what is uniformitism

Geological change is slow & gradual rather than fast & catastrophic. important because it tells us that the earth is old, therefore there was time for evolution mechanisms to happen

where did darwin go on for his voyage and what observations did he make? How did this  lead to the theory of evolution by natural selection?

* galapagos
* ==observed variation in finches on each island==
* ==Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success.==