Which stage is the last stage of speciation?

a) the populations become totally separated from one another.

b) the populations interbreed successfully.

c) the populations are isolated and thus do not interbreed.

d) the population become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.

Blood, made up of red and white blood cells, work together to form

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

Which entry is in the wrong position in the table?