Word Bank pg 3 Evolution Ancestor Phylogeny Morphology 5. Analogous Structure 6.Homologous Structure 7. Vestigial Organs 8. Vertebrates

Evolution part 1 Pg 86

Morphology (What it looks like) Study of an organism’s form(shape), structure and features that are specific to the organism.

Phylogeny A diagram showing the evolutionary relationships between organisms and where they have diverted apart from each other

Evolution part 1 Pg 86

How life was like in the 1800s No internet, no touch screens, no facebook or snapchat Lived your life through religious practices and knowing no matter what you do in life you can always marry your cousin

Religious text Helped people live their lives Gave hope, purpose, and a lifestyle Considered The “First history book”

Origins Charles Darwin: -Naturalist scientist who watched animals, sailing around the world -Published the “Origin of Species”

The S.S. Beagle 1831 to sail to south america

13.1 Evidence for Evolution An adaptation is an inherited trait that helps an organism survive. Adaptations include body structures that help an organism feed, move around, and protect itself.

13.1 Evidence for Evolution Evolution is the process of how organisms acquire adaptations over time. Eohippus is an ancestor of what modern animal?

13.1 Evolution is a branching process Diversity means variety. Scientists hypothesize that all life forms evolved from a common ancestor and new species branch off from earlier species. Similarities among all cells support the hypothesis that all life evolved from a common ancestor. All cells have a similar cell membrane. Many cells have the same type of cellular respiration. All cells have DNA as their hereditary material.

13.1 Evolution is a branching process An ancestor is an organism from which others have descended. A cladogram displays evolutionary relationships among living species and their ancestors.

Darwin’s Argument We are the descendants of an common ancient ancestral organism.

Common descent All living organisms descend from one common ancestor

Embryology Study of gametes, embryo and fetal development.

Descent with modification Passing on traits to offspring changes them little by little

Homologous Structures Similar structures that evolved from a common ancestor. The organ or bone have similar function and make up

Analogous Structures Morphological differences in species that have the same appearance, structure or function but have evolved separately from other species They do not share common ancestor

Vestigial Organs Organs that don’t serve a major function in future descendants

Complete questions on 221 1-5 Write the question and answer