Which is an innovation of gymnosperms?
gymnosperms are the first seed plants.
gymnosperms are the first flowering plants.
gymnosperms are the first vascular plants.
gymnosperms are the first spore plants.

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

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?