Which of the following is a true statement about natural selection?

• it is goal directed
• individuals evolve
• variation exists in a population
• acquired characteristics

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

Using the cladogram:  a common ancestor of amphibians and ray-finned fish would have

• a bony skeleton
• four limbs
• scaly skin
• eggs with shells

Tags

NGSS.HS-LS4-1

A newly identified organism has four limbs and amniotic eggs with shells.  Which organism do they most likely share a common ancestor with?

• ray-finned fish
• birds
• rodents
• amphibians

Tags

NGSS.HS-LS4-1

What evidence of evolution?  Giraffes have the same number of vertebrae in the neck as do humans?

• comparative anatomy
• comparative biochemistry
• comparative embryology
• geographic distribution

What evidence of evolution? Kangoaroos are found only in Australia.

• comparative embryology
• comparative anatomy
• comparative biochemistry
• geographic distribution

What evidence of evolution? Human embryos have tails

• comparative embryology
• comparative anatomy
• comparative biochemistry
• geographic distribution

What evidence of evolution? Humans and sea stars both have radial cleavage in the early embryonic development.

• comparative embryology
• comparative anatomy
• comparative biochemistry
• geographic distribution

The condition in which there are barriers to successful interbreeding between individuals of different species in the same community is referred to as 

• sexual dependency
• reproductive isolation
• geographic isolation
• adaptive radiation

Tags

NGSS.HS-LS4-5

The wing of a bat and a humans' arm have different functions and appear very different.  Yet, the underlying anatomy is basically the same.  therefore, these structures are examples of

• geographic isolation
• analogous structures
• homology
• reproductive isolation

Tags

NGSS.HS-LS4-1

The population of peppered moths in England changed from white to black in 50 years

• stabilizing selection
• sexual selection
• directional selection
• disruptive selection