Answer:
it is true. Watersheds can be as small as a footprint or large enough to encompass all the land
There is four kingdom in the domain eukarya.
Domain eukarya is made of eukaryote organism. Domain eukarya has 4 kingdom: Protista, Fungi, Plantae and Animalia. The member of Plantae is autotroph organism that has chlorophyll and capable of doing photosynthesis. Fungi has cell wall that made of chitin. Animalia doesn't have cell wall.
Yes there are cell organisms are divided into each of there own groups
This dispersal reduces the likelihood that a sperm will find an egg. Many sperm and eggs die before achieving fertilization. The low success rate of external fertilization puts animals at a reproductive disadvantage compared to internal fertilization.
Increased in pitch (frequency). It's the doppler effect.