We would need more information to answer this question
Number 1 is fraternal (also known as dizygotic)
also sorry i don't know the second one
The process where a specie develops and evolves into new many species is termed as speciation. Macroevolution explores the mechanism of speciation where organisms across biological populations evolve as distinct population.
There are many causes to speciation, a) geographic isolation, b) gene flow reduction, and c) reproductive isolation.
meaning: type of tissue in a plant