About This Chapter
MTLE Life Science: Evolutionary Relationship Between Species - Chapter Summary
In these lessons you will watch our expert instructors as they discuss with you key subject matter pertaining to the evolutionary relationship amid species. These lessons are mobile device compatible so that you may have a versatile and portable way to prepare for MTLE Life Science exam questions about:
- Kinds and features of fossils
- The fossil record
- Phylogenic trees
- Forms of relative dating
- Convergent evolution
- Artificial selection
To reinforce your retention of the information being presented in these lessons, read the lesson transcripts, and then take the lesson quizzes to discover the topics you don't understand. After these short assessments, you can improve your understanding of the topics you missed by returning to and reviewing the parts of the lessons that explained them using the video tags.
1. Fossil: Definition, Types, Characteristics & Examples
Fossils provide scientists with many clues about Earth's history, offering evidence of dinosaurs and strange plants that existed in the past. This lesson will define a fossil, look at different types and characteristics of fossils, and then describe how fossils are formed.
2. Fossil Evidence for Biological Diversity, Speciation, & Mass Extinction
One of the best sources of evidence we have for evolution is the fossil record. Fossils provide a wealth of information on how species change over time and for exciting events like mass extinctions and new species formation.
3. Phylogenetic Tree: Definition & Types
We'll explore the ways taxa are categorized into a visual diagram, known as a phylogenetic tree, as well as what information these 'trees' tell us about the evolutionary relationship between organisms.
4. Relative Dating with Fossils: Index Fossils as Indicators of Time
You may already know how to date a fossil with a rock. But did you know that we can also date a rock with a fossil? Watch this video to find out how we use index fossils to establish the relative ages of rocks.
5. What Is Convergent Evolution?
It can be difficult to tell whether species are related just by looking at them. Organisms look and act the way they do because of ancestry, but similarities also arise because of similar environmental roles, as is the case with convergent evolution.
6. Artificial Selection in Evolution
Humans have been selectively breeding for desirable traits in plants and animals for a long time. This artificial selection allows for a lot of control in the breeding process but can also lead to unintended mutations within a population of organisms.
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Other chapters within the MTLE Life Science: Practice & Study Guide course
- MTLE Life Science: Principles of Scientific Inquiry
- MTLE Life Science: Using Mathematics & Computers
- MTLE Life Science: Using Statistics
- MTLE Life Science: Teaching Reading Skills
- MTLE Life Science: Cellular Structures & Processes
- MTLE Life Science: Photosynthesis & Cellular Respiration
- MTLE Life Science: Function & Synthesis of Proteins
- MTLE Life Science: Mitosis & Meiosis
- MTLE Life Science: Concepts & Principles of Heredity
- MTLE Life Science: Gene Mutation & Expression
- MTLE Life Science: Gene Technology
- MTLE Life Science: Classification of Living Organisms
- MTLE Life Science: Structure & Function of Plants
- MTLE Life Science: Structure & Function of Mammals
- MTLE Life Science: Human Immune System
- MTLE Life Science: Adapting to the Environment
- MTLE Life Science: Genetic Variance & Phenotypic Influences
- MTLE Life Science: Organisms & Their Environment
- MTLE Life Science: Population & Species Diversity
- MTLE Life Science: Matter & the Flow of Energy
- MTLE Life Science: Behavior of Organisms
- MTLE Life Science Flashcards