How are apple trees classified? nonvascular, seed, nonflowering
vascular, seedless, nonflowering
nonvascular, seed, flowering
vascular, seed, flowering

Atwo point turn is similar to a three point turn save for which of the following aspects

A. describe the model of urban structure most often observed in mega-cities in developing countries. explain how this model differs from common urban structures in north america. b. describe at least two factors leading to the growth of mega-cities in developing or least-developed countries. c. identify and explain two factors that led to the formation of squatter settlements in mega-cities in developing countries.

Why is it essential to operationally define the variables in a study?