Mechanisms of Evolution
Natural Selection
Adaptations
Regents Questions
Variation
100
This involves population and individuals
What is Evolution?
100
The survival and reproduction of the organisms that are genetically best fit for their environment
What is the definition of Natural Selection?
100

This is one of the examples of adaptation where an organism changes the way it acts

What is behavioral adaptation?

100

A maple tree releases hundreds of seeds in a single season. This is an example of…

A. a mutation

B. geographic isolation

C. overproduction

D. non-random mating

What is C. overproduction?

100

A mistake in the DNA sequence, resulting in variation.

What is mutation?

200
A theory (explanation) supported by evidence for how populations change over time
What is evolution?
200
The variety of dog and cat breeds that we have today are a product of _________ _____________.
What is Artificial Breeding (Selective Breeding)
200
A variation in an organism that helps it survive
What is Adaptation?
200

A correct interpretation of the theory of natural selection could be…

A. The strongest survive

B. Nature will cause mutations that fit the     environment better

C. Individuals will naturally select the variations which allow them to live better

D. Individuals which are most fit to the         environmental conditions will survive.

What is D. Individuals which are most fit to the environmental conditions will survive.

200

The type of cell division that produces unique offspring

What is meiosis?

300

The father of evolution

Who is Charles Darwin?

300
The name of the islands where Darwin studied and gathered his evidence on Natural Selection
What are The Galapagos Islands?
300
An organism matches its surroundings in order to hide
What is Camouflage?
300

What is the best definition of evolution?

   a. Genetic change in an individual.

   b. Genetic change in a population over time.

   c. The process by which humans came from monkeys.

   d. The process by which somatic mutations are passed down to offspring.

What is b. Genetic change in a population over time.

300

The type of reproduction that produces variation in the offspring

What is sexual reproduction?

400
Evolution can only occur is this is involved
What is Genetic Variety?
400

Any trait that helps an organism survive and reproduce is said to have _________ _______.

What is Adaptive Value?

400
An organism imitates an animal
What is Mimicry?
400

The structural similarities between the flippers of whales and the arms of humans are used to show that the…

    a.  human species began life in the oceans 

       b.  human species and whales have a common             ancestry 

       c.  whales are older than the human species 

       d.  whales evolved from the human species

b.  human species and whales have a common ancestry

400

When homologous chromosomes pair up during meiosis and exchange genes like baseball cards, causing variation.

What is crossing over?

500
Two different organisms are alike, they share this in their bloodline
What is a Common Ancestor?
500
A little child catches a fly and pulls its wings off. The fly actually lives a better life, but does not pass its lack of wings on to its offspring because the loss of wings is an _________ _______.
What is an Acquired Trait?
500
The venom of the black mamba snake is an example of a type of adaptaion
What is an example of Physiological Adaptation?
500

The short “tailbones” of humans are thought to be an example of

A. Homologous structures proving             evolution

B. An adaptation caused by an early             ancestors need to have a tail to survive

C. Homogeneous structures which indicate         common ancestry

D. Vestigial structures which are remnants of     structures no longer needed for     survival

D. Vestigial structures which are remnants of structures no longer needed for survival

500

Variation in offspring may produce a new and desirable trait. For the trait to spread through the population it must have ________ ______.

What is adaptive value or positive effect?

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