In seed producing plants pollen grains contain what

The deserts of the sahara and australia are associated with

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.