Chapter 6- Unity and Diversity

What is suggested by the picture?

• Horses appeared no more than a million years ago and had no ancestors before that time

• There were no animals that would be considered to be related to horses 55-50 million years ago

• The modern horse is related to other extinct species

• The hyracotherium is the same species as the modern horse

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Human beings belong in which of the following Kingdoms?

• Protista

• Fungi

• Plantae

• Animalia

The term 'Unity in Diversity' was coined by ________.

• Indira Gandhi

• Jawaharlal Nehru

• Mahatma Gandhi

• Buddha

What are fossils?

• Are the remains or evidence of once-living organisms

• Is the change over time in populations of related organisms

• A chart that divides Earth’s history into different time units

• Occurs when the last individual organism of a species dies

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Selective Breeding

• Is a slight difference in an inherited trait of individual members of a species.

• Is an adaptation that enables a species to blend in with its environment.

• The breeding of organisms for desired characteristics.

• The resemblance of one species to another species.

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Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

• The function of these bones is the same in all animals
• They live in similar environments
• They have a common ancestor
• All organisms resemble humans

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Individuals with favorable traits survive, reproduce, and pass their traits onto their offspring. This is called

• Mutation
• Adaptation
• Evolution
• Natural Selection

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Which of the following pieces of evolution evidence deals with comparing similar structures in various species?

• fossil record
• comparing embryology
• comparing biochemistry
• comparing anatomy

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The structures shown are_________

• homologous
• heterologous
• analogous
• vestigial

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• Homologous
• Vestigial
• Analogous

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