Think about the three major types of soil: sand, silt, and clay. The diagram shows a comparison of these three particles, as well as a piece of gravel to show size differences. Which of these soils is best for supporting plant life and why?

A) Silt is best for most plants because roots are able to access air and water easily.
B) The large particle size of sand allows it to hold more water, making it best for plants.
C) Clay has the smallest particle size, allowing roots to grow further down than other soils.
D) Due to its small particle size, clay is sticky, and holds plants more securely than other soils.

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Consider the skeleton. which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?