Unit 7 Life Science

What is the term for a feature that allows an organism to survive in its environment?

• adaptation
• variation
• homologous structure
• vestigial structure

• analogous structures
• homologous structures
• vestigial structures
• none of the above

What is the process of which humans breed organisms for certain traits?

• artificial selection
• descent without modification
• inheritance of acquired characteristics
• natural selection

Vertebrate embryos pass through similar stages of development is evidence for

• use and disuse
• homologous structures
• common ancestry
• acquired characteristics

Individuals that are well adapted to their environment will survive and produce

• better traits
• stronger genes
• more offspring
• fewer mutations

The remnant of an organ that had a function in an early ancestor is known as a(n)

• vestigial structure
• analogous structure
• homologous structure
• fossil structure

Change over time...

• Evolution
• Nucleotide 

Darwin wrote that organisms with traits that are best suited to the environment will ________________

• increase in number
  
• become extinct
  

Another word for adapt is ____________.

• change
• create

What characteristic did Darwin observe about the finches on the Galapagos Islands?

• Their feathers 
• Genotypes 
• Their beaks
• Their body sizes