Theories and Evolution
What was Darwin's theory called?
The theory of evolution
What is the definition of natural selection?
Plants and animals that survive in their environment reproduce and pass on their genes. In their turn, their offspring that survive will reproduce and pass on their genes
An organism with high fitness has two characteristics that distinguish them from an organism with low fitness ?
they are more likely to survive and reproduce
Based on Darwin's theories and studies, why did the finches develop different shapes of beaks?
Because of the food that was available for them to eat.
A population of rabbits lived in a forest habitat. The rabbits' coat color varied between spotted, light brown, white, and black. over time the light brown color became the most prominent, explain what happened.
over time the environment became a desert so the light brown color had the highest chances of survival and reproduction
which organelles are shown to have evolved through endosymbiosis?
Mitochondria and chloroplasts
Give an example of homologous structures
the wings, flippers, and legs of different animal that have a similar anatomical structures.
In a forest there are many insects, green, brown, and white insects, which do you think will have the lower chances of survival? and why?
The white insects, because they will be more visible to the predators in the environment.
what are the elements that make up proteins?
Oxygen, Carbon, Hydrogen, Nitrogen
what can cause the end of a species?
Gradual change over a long period of time due to small changes in the environment. Rapid change due to a major change in environmental conditions. Extinction. human influence
Give 4 causes of extinction
new predators, climate change, competition, disease. page 274 in book.
Give a clear example of coevolution
teacher will assess the answer