Two identical fish, both at sea level, float in two identical aquariums with identical quantities of water. Fish A is in Alaska, so it weighs more than fish B at the equator, since g is larger at sea level in Alaska. Which statement is correct?
a. A comparison is impossible unless they are both floating at the same level.
b. Fish A displaces a greater quantity of water than fish B.
c. Fish B displaces a greater quantity of water than fish A.
d. They both displace the same quantity of water.
e. Fish A has a smaller acceleration than Fish B when equal horizontal forces are applied to each, because Fish A weighs more.
Question 2
A thin rectangular piece of wood floats in water. You slowly pour oil with a density equal to that of the wood on the surface of the water until the height of the oil above the water is twice the height of the piece of wood. Which statement is correct?
a. The wood floats on top of the oil, so it sticks up in the air.
b. The wood does not change its position
c. The wood sinks below the surface of the water.
d. The wood is half in the water and half in the oil.
e. The wood floats in the oil just above the water.
Territorial reef fish compete intensely for space.
Nuclear division at the DNA level
Single-gene inheritance tracked at the DNA level
#38.Genetically identical organisms derived from a single genetic source are #39
identical (left) and fraternal (right) twins
Structure and function of the gills of a bony fish.