Artificial Selection
Natural Selection
Artificial VS Natural Selection
Fossils
100
What is artificial selection?
It is where people breed animals with specific traits to make organisms with desirable traits
100
What is Natural Selection?
When animals choose naturally choose who to mate with.
100
This type of selection occurs when humans begin breeding for a specific trait.
What is artificial selection or selective breeding.
100
The diagram below shows fossil evidence found in one area during three different time periods. Use the diagram to answer the next question.
Which fossil is the oldest?
A. Fossil A
B. Fossil B
C. Fossil C
A. Fossil A
200
What is a downside to artificial selection?
It decreases genetic diversity.
200
What is the result of natural selection?
Organisms with a variety of traits.
200
This type of selection occurs naturally over time due to some organisms being better adapted to an environment than others.
What is natural selection?
200
The diagram below shows fossil evidence found in one area during three different time periods. Use the diagram to answer the next question.
The environment during Time Period 1 was very hot and rainy. Over time, the environment became much drier. What can you conclude from this information?
A. Fossil A was best adapted to a hot and rainy environment because they had a large population during Time Period 1.
B. Fossil A was best adapted to a dry environment because they had a large population during Time Period 1.
C. Fossil C was best adapted to a dry environment because their population decreased in Time Period 3.
D. Fossil B was best adapted to a hot and rainy environment because they had a large population during Time Period 1.
A. Fossil A was best adapted to a hot and rainy environment because they had a large population during Time Period 1.
300
How does artificial selection work?
Humans breed 2 organisms with more convenient/likeable traits in order to attain the desirable trait in the offspring.
300
What is a downside to natural selection?
You may get organisms with unwanted traits.
300
By breeding cows that are high milk producers to increase the amount of milk produced by their cows farmers are participating in this type of selection.
What is artificial selection or selective breeding.
300
Which layer is the youngest?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 5
A. Layer 1
400
Another name for Artificial Selection
What is Selective Breeding?
400
Of the following examples, which is not an example of natural selection:
1. 2 animals breed together in a zoo on their own.
2. 2 animals with likable traits breed on their own.
3. 2 animals with likable traits get bred by people that chose those animals.
3. 2 animals with likable traits get bred by people that chose those animals.
400
There are over 1,000 species of pecan trees in Texas. Each tree is found in a different region of Texas and has slightly different traits. This variation was caused by this type of selection.
What is natural selection?
400
For any fossil found in layer 4, which layer would most likely contain the ancestors of that fossil (organism)?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 5
D. Layer 5
500
Several students came up with the following examples of artificial selection (selective breeding). Which student is correct?
Student A: Female birds choose their mates based on the appearance of the male’s feathers.
Student B: Galapagos finches with helpful beak shapes survive and reproduce more often.
Student C: Corals in the Pacific Ocean become resistant to warmer water temperature.
Student D: Farmers in North Dakota crossbreed wheat plants to produce plants that are resistant to disease.
Student D: Farmers in North Dakota crossbreed wheat plants to produce plants that are resistant to disease.
500
What question would a student ask to determine which bird is more likely to survive in the wild?
A. What traits did a breeder chose to make a new brightly colored bird that is desired by humans?
B. How high can the bird fly?
C. What traits will the bird choose to develop to survive in the wild?
D. Are the traits the bird is born with helpful for his survival in the wild?
D. Are the traits the bird is born with helpful for his survival in the wild?
500
This type of selection takes longer.
What is Natural Selection?
500
Echippus is an early ancestor to modern horses that lived 40 million years ago. The animal had a short neck, a short tail, and feet with four toes. After ten million years, the tail and neck became longer and one of the toes disappeared (as seen in the Mesohippus picture). Evolution of these animals continued for 20 million years up to the present day. These animals now have longer necks and one solid hoof.
Which explanation can best be supported by the horse fossil record?
A. The fossil record shows that the mammals gradually evolved so that their toes became one large hoof - this variation must have been more useful for survival than many toes.
B. The fossil record shows that the mammals chose to evolve so that their toes became one large hoof - this variation must have been more useful for survival than many toes.
C. The fossil record shows that the mammals gradually evolved so that their toes became one large hoof - this variation must have been less useful for survival than many toes.
D. The fossil record shows that the mammals chose to evolve so that their toes became one large hoof - this variation must have been less useful for survival than many toes.
A. The fossil record shows that the mammals gradually evolved so that their toes became one large hoof - this variation must have been more useful for survival than many toes.