The 360-million-year-old Acanthostega ____
A)had limbs but could not walk on land
B)had limbs and could walk on land
C)lived entirely on land
D)had no limbs but lived on land
E)lived entirely in water
A
You might also like to view...
Externalized costs include social costs as well as environmental costs.
Answer the following statement true (T) or false (F)
Why does a rising air parcel cool off?
A) It is unstable. B) Its relative humidity is less than 100 percent. C) It loses energy by radiation. D) It expands. E) It loses heat to its surroundings.
Which of the following processes is NOT considered to be chemical weathering?
A. thermal expansion B. hydrolysis C. reaction with acids from decaying plants D. oxidation E. dissolution
The Rotterdam subway was built by
A. building the tunnel in segments which were flooded, sunk into position, then joined and pumped dry. B. draining water from below the city to allow excavation of a dry tunnel. C. baking the ground to harden the clays, then blasting the tunnel through. D. raising the tunnel on stilts to keep it above the local water table.