What is the area of calm winds near the equator called?

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Four types of motile cells in human body?

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind