Kiosk8th Period

Notes Due Friday

Darwin’s expedition

By: DiamondBrown

Darwin’s observations

• Darwin observed the diversity of living things.

• the remains of ancient organisms.• And the characteristics of organism’s living

on the Galapagos islands.

Diversity • He was amazed by the diversity of all the

different animals• There were many of the same species of

animals with diff. characteristics than the other organism that are the same species but have diff. characteristics.

• Species- a group of similar organisms that can mate with each other & produce offspring

• He found many diff. species of animals in the Galapagos islands

Fossils

• Fossils- the preserved remains or traces of an organism that lived in the past

Evolution

By: Gabby Lucarelli & Raelyn Dawson

Evolution

The gradual change in species overtime is

called evolution.

Darwin's reasoning• Darwin really wanted to understand the

different variation and life styles of organisms on the Galapagos islands.

• Darwin's reasoned that plants or animals that arrived on the Galapagos islands faced conditions that were different from the conditions faced on the main lands.

Darwin’s Theory• Darwin’s ideas are often referred to

as the theory of evolution.• A scientific theory is a well-tested

concept that explains a wide range of observatons.

Galapagos Organisms

By: Eric Rudary, Tyler Castro, Leny Bykov, Leo Held, Alexis

Bearss

• Darwin found that many of the birds on the Galapagos Islands resembled those on the mainland.

• Darwin hypothesized that a small number of different plant and animal species had come to the Galapagos Islands from the mainland.

• Darwin noticed many differences among organisms as he traveled from one Galapagos Island to the next.

• The beak shapes of the different finches on the Galapagos Islands are an example of an adaptation (a trait that helps an organism survive and reproduce).

Natural Selection By:

Angela Faranda&&

Ariana Ehasz

Natural selection is the process by which individuals that are better adapted to

their environment are more likely to survive

Overproduction

When too much offspring are produced there is not enough

resources – food, water, and living space- for them all. If newly

hatched insects survived, they would soon crowd out all the other

plants and animals.

VariationsA difference between two individuals

of the same spices.

CompetitionWhere animals compete for food,

space, or water to survive. Its mostly indirect than violent.

Selection

Selection is the process were animals with an adaptation reproduce a lot more and over the time of many different generations.

Environmental Change

Environment Change is when the environment changes and can kill off many members of a species. Then only the animals with a special adaptation survive and live on to reproduce more of the animal. The offspring then gets the adaptation.

Genes And Natural Selection

Variation in the genes is what causes natural selection. The animal with the gene is more likely to have offspring which will in turn get the special gene.