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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
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)
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.