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vocab

history

evidence

extinction

theories of evolution

lamarck

darwin

first to evolve fish amphibians,reptiles,mammals, and birds

ancestral organism shared by two or more descendent lineages

evolution: A change in the inherited characteristics of populations from one generation to the next.


mutation: A change in the DNA of a gene that may lead to a different trait.



evolve: To change heritable traits from one generation to the next.


natural selection: the process whereby organisms better adapted to their environment tend to survive and produce more offspring.




natural selection

If an organism keeps using a structure to carry out a task the structure would become physically modified to make the task easier.

dinosaurs

trilobitess

many animals go extinct because of climate change, humans destroying habitat, green house gases, and other things.

adapting

species evolve from common ancestors

Theory of inheritance and acquired characteristics

He believed that when body parts arent being used those parts will disappear overtime.

examples of living things that evolved

giraffes evolved from short necks to long necks

bacteria evolved to antibiotic resistence

survival of the fittest

species evolve over time

continualy use of a body part will over time change that bofy part to make it easier

girrafes streched there necks to eat grass

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DNA a self replicating material that is present in nearly all living organsims as the main constitute of chromosones it is the carrier of genetic information

embryo-an unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization (after which it is usually termed a fetus)

scale-events

people found that whales evolved from land mammals because of their bone stucture and fossil that people found.

we know that species evolve ovetime because of fossils but also because of insects and bacteria we were trying eliminate overtime evolved to become resistent.

whales evolved from land mammals to see mammals

there are animals like octupus that evolved to have camouflage to stay away and be protected from predators

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there are also evidense that many animals came from common ancestors like when all species are in a embryonic stages many species look the same.