lesson 1
early study of evolution
early study of evolution
evolution
the process by which modern organisms have descended
mechanism
natural process by which something takes place
sexual selection
What is sexual selection
homologous structures
What are homologous structures
endosymbosis
What is endosymbiosis
Who is Charles Darwin
a scientist who worked with other scientists to develop a theory of evolution
natural selection
a process by which individuals that are better adapted to their environment are likely to survive and reproduce than other members of the same species
feathers
What do oily feathers help madarin ducks
embryo
what is an embryo
protein
What is protein
What was Jean-Baptiste Lamarck put in charge of
a museum department of insects and worms
competition
The struggle among living things to get the necessary resources
A mutation is like a spelling error in a gene's DNA sequence of nucleotides
Any change in the sequence can result in___what
preserved fossils
fossils are preserved traces of what
The shared use of DNA is one piece of evidence that every organism on Earth has a common ancestor
this common anscestor is called ___ what
What did an armadillo evolve from
glyptodon
Darwin observed that some variations make individuals better adapted to their enviorment.
those individuals were more likley to what?
In some species, females choose which male will father their offspring
natural selection favors traits that help females coose their mates with high___what?
scientists can observe evoultion taking place in poulations of what
proteins and evolution
What could happen to the function of a protein if the gene for it contains a mutation
scientific theory
a well-tested explanation for a wide range of observations and experimental results
thomas malthus noted both animals and humans can produce offspring
if all the offspring survived the world would what?
In some species, males fight for a mate
Natural selection favors males with specific___what?
change
how do fossils show chnage over time
Individuals usually inherit DNA from their parents
Surprisingly, scientists have discovered genes can also pass through individuals from different ____ what