Evolution Evidence for Evolution Other Evidence for Evolution






















- Slides: 22

Evolution Evidence for Evolution

Other Evidence for Evolution: l l l Adaptations – Camouflage, Mimicry Fossils Anatomy Embryology Biochemistry – DNA Evidence

Structural adaptations have been observed in populations of birds, insects, and many other organisms. l Example: Camouflage adaptations of mantids that live in different environments…

Adaptations: Camouflage Hi! Scorpion fish

Adaptations: Mimicry moth caterpillar katydid

Adaptations: Mimicry viceroy butterfly monarch butterfly

Analyzing Fossil Evidence l Fossil: a trace of a long-dead organism l Biological diversity: many different fossils found showing different species or subspecies. l Episodic speciation: time when a large number of species appear l Mass extinction: brief periods in time where large numbers of species disappeared (Ex: dinosaurs)

Fossils The fossil record provides evidence for theory of evolution. Elephant evolution based on fossils

Sedimentary Fossil Formation

Pair Share l In your own words, explain how mimicry is different from camouflage.

Anatomy: § Homologous structures: similar in function and organisms do share common origin. Forearm bones in mammals

Homologous structures

Anatomy: • Analogous structures: similar in function, but organisms do not share a common origin. Example: Insect wings and bird wings.

Anatomy: l Vestigial structures: body parts that have lost their function over time and are now useless. l Examples: human appendix

Embryology: Vertebrate embryos are similar, pointing to common origin.


Embryology Developmental homology

Biochemistry l Biochemistry: Similarities in DNA sequence and thus amino acid sequence point to a common origin. The fewer the differences, the more closely related two organisms are. l Cladogram: Visual way to show closely related species are. l


Pair Share Refer to the illustration. The bones labeled A are known as a) vestigial structures. b) sequential structures. c) homologous structures. d) fossil structures. l

Pair Share Evidence for evolution includes all of the following except a) some members of the same species show different traits. b) similarities and differences in protein and DNA sequences between organisms. c) the fossil record. d) homologous structures l

Pair Share The occurrence of the same blood protein in a group of species provides evidence that these species a. evolved in the same habitat. b. evolved in different habitats. c. descended from a common ancestor. d. descended from different ancestors.
10 4 Evidence of Evolution EVIDENCE OF EVOLUTION
Evolution Evidence of Change Evidence for evolution Charles
Evidence for Evolution Evidence Supporting Evolution n Fossil
EVIDENCE FOR EVOLUTION Biology 9 EVIDENCE FOR EVOLUTION
Evidence for Evolution Evidence for Evolution Strongest line
MEDICAL EVIDENCE EVIDENCE UNDER INDIAN EVIDENCE ACT 1872
Evidence Direct Vs Circumstantial Evidence n Direct evidence
Footwear Evidence Footwear Evidence What is footwear evidence
Forms of Evidence circumstantial evidence direct evidence real
Evidence 9913 Evidence What is it Direct evidence
Evidence With Power The Evidence Series Evidence With
Evidence of Evolution What evidence do we have
7 A Evidence of Evolution Fossil Evidence Biogeography
Evidence for Evolution Evidence of a Changing Earth
PPAR activation Clinical evidence Evolution of clinical evidence
10 4 Evidence of Evolution KEY CONCEPT Evidence
Evidence of Evolution Four Main Types of Evidence
Evidence of Evolution 234 240 1 What evidence
Evidence of Evolution Four Main Types of Evidence
Biological Evidence of Evolution Ch 6 3 Evidence
Evidence for Evolution 2018 2019 Major Evidence for
10 4 Evidence of Evolution KEY CONCEPT Evidence