Darwin and Speciation

Credited for the theory of inheritance of acquired characteristics and coined the term BIOLOGY.

• Darwin

• Lamarck

• Mendel

• Franklin

Match Lamarck's forces of evolution to their definition.

• Force that drives organisms up a ladder of complexity

• Transmutate

• Environmental force causing organisms to change to fit their environment

• Complexifying Force

• The ability for species to change

• Adaptive Force

Credited for the theory of natural selection as the force causing organisms to develop, evolve, and branch out.

• Darwin

• Lamarck

• Mendel

• Franklin

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Darwin believed that organisms are in constant competition with each other which allows their survival and causes certain traits to be passed on to offspring. These traits are known as

• favorable variations

• natural selection

• artificial selection

• mutations

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Which is defined as the largest group of organisms in which any two individuals can mate to produce fertile offspring? We now use karyotypes, DNA sequences, ecological niches, and other factors to determine this.

• population

• community

• species

• ecosystem

The fossil records suggests that instead of a constant rate of evolutionary chage, there are short bursts of rapid evolution, typically following a catastrophic event. This is called punctuated equillibrium.

• TRUE

• FALSE

Match the speciation types with their process.

• Due to geographic isolation

• Sympatric

• Partial geographic separation of different environments

• Allopatric

• Geographic isolation of a very small population, usually on islands

• Peripatric

• No barrier. Caused by mating habits

• Artificial

• Farming, breeding, or lab selection of traits by humans

• Parapatric

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When a population becomes divided by an event such as a new river forming, ____________ has occurred.

• Allopatric Speciation 

• Parapatric Isolation

• Sympatric Speciation

• Peripatric Speciation

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The flowers of pink tulips open in the morning, while the flowers of lavender tulips open in the early afternoon. The bees that pollinate these tulips cannot carry pollen back & forth between the two types of tulips because of their flowers being closed at different times of day. What type of reproductive barrier is this?

• Allopatric

• Peripatric

• Parapatric

• Artificial

Albert’s squirrel and the Kaibab squirrel are distinct subspecies that live on opposite sides of the Grand Canyon. They are not able to mate. They were once one species, but now differ significantly, including fur coloring. What type of speciation has ocurred?

• Allopatric

• Parapatric

• Sympatric

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