Show:
Mutations
Sexual Reproduction
Lamarckian/Darwinian Explanations
Speciation/Evolution
Variations
100
The resistance of the housefly to DDT can be caused by?
Mutation
100
Why is sexual reproduction necessary?
If there is no reproduction the species will go extinct.
100
Which of the following are not associated with Darwin's theory of evolution? -Variation within a population -Natural Selection -Use and disuse of organs -Sexual Selection
Use and disuse of organs
100
What is speciation?
The formation of new and distinct species in the course of evolution
100
Define variation
A difference between one individual and other members of a population
200
Cutting your skin is a mutation to the ______ cells, and will or will not be passed on to offspring?
Somatic, will not be passed on
200
What is the benefit of sexual reproduction?
Variation within a species
200
Which biologist had the theory of inheritance of acquired characteristics?
Jean-Baptiste Lamarck
200
What are the two pathways to speciation?
Transformation and divergence
200
True or False? Sexual reproduction is related to variation?
True
300
Which aspect of molecular biology is altered by mutations
DNA
300
A Liger is an example of a ______ species
Hybrid
300
Which biologist thought that new needs or desires produce new structures and change habits of organisms
Jean-Baptiste Lamarck
300
How do scientists currently explain evolution?
The Theory of Evolution by Natural Selection.
300
How do variations lead to evolution of populations?
Natural selection
400
Mutations are a source of what in organisms?
Variation
400
What is a biological species?
A group of reproductively compatible populations.
400
What book did Lamarck write?
Philosophie Zoologique
400
What conditions are required for speciation?
Geographic Isolation and Reduced Gene Flow
400
What are the benefits of variation?
When there is a change in the environment, individuals with a variation may have a selective advantage, making them more likely to survive and reproduce
500
Some bacteria have developed a resistance to penicillin. They produce enzymes that destroy it. The drug resistant bacteria develop as a result of
Mutations and natural selection
500
How does sexual reproduction create variation within a species?
The genes from two parents combine to produce offspring with many different possible combinations of genetic information.
500
What is essential to Darwin's theory?
Struggle for existence
500
Name at least 5 pieces of evidence that exists to support the theory of evolution.
Vestigial Organs, Comparative Anatomy, Fossils, Embryology, Biogeography, Analagous Structures, Artificial Selection, Biochemistry and Molecular Genetics, Speciation
500
Starting from a single wild canine species, humans have developed hundreds of breeds of domestic dogs. Which of the following statements is supported by this observation? A) Natural selection had not occurred very frequently in the wild dog populations. B) There was enough heritable variation in the wild canine species to create a variety of features. C) Heritable variation is low; otherwise the there would be more wild dog species. D) Most of the variation in domestic dog species is a result of variation in nutrition and training.
B) There was enough heritable variation in the wild canine species to create a variety of features.