What is the term for rock that has weathered to become soil?

A. topsoil

B. horizon

C. permeable layer

D. parent material

What is the main definition of the word aquifer

Viruses that infect bacteria are called? a. protists b. archaea c. bacteriophages d. lysogens

What kinds of questions can we answer with science

The elements that are characterized by having only five electrons in the p sublevel belong to which family of elements?

Outside the box Starch is digested by the enzyme amylase. A student did an investigation on amylase activity. This is the method used. 1. Mix amylase solution and starch suspension at 20 °C in a boiling tube. 2.

The front leg of an iguana and the wing of a bird look different, but both limbs likely originated from a similar limb in a shared ancestor. Structures such as these are said to be A) heterogeneous B) differentiated C) vestigial D) homologous

What's the genotype of human female

Fluid filled sacs found between the skin and underlying bony prominences are called

Trees, such as those in the deciduous forest, are very important to the environment. If the number of trees on earth continues to decrease significantly, what might be the result?

List two reasons why amphibians must live in moist environment.