Modern whales lack hind limbs, and have tail flukes and ears specialized for hearing underwater. Which of the following is the correct order for the evolution of these whale
characteristics?

A Loss of hind limbs followed by tail flukes and underwater ears
B Loss of hind limbs followed by underwater ears and tail flukes
C Tail flukes followed by loss of hind limbs and underwater ears
D Underwater ears followed by tail flukes and loss of hind limbs

i'm pretty sure it's spores

they fuse to form they have half as many chromosomes as a somatic cell of the same individual. b

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.