Concentrations of harmful substances increase in organisms at higher trophic levels is called

Which food provides the body with energy in the form of carbohydrates? A. whole grains B. fish C. vegetables D. lean meats

From which one of these items will water evaporate at a different rate? a. Factory B} humans c. school buildings d. car

Name two methods used by breeders to increase the rate of mutation

What gas is generated from the anaerobic digestion of animal waste?

The table below shows the fossils of organisms found in various layers of an undisturbed rock: Fossils In Rock Layers Layer (from top) Fossils in Layer 1 X, W 2 W 3 Z 4 Y, U Which statement about the organisms whose fossils are found in the rock is

Athletes prepare for big competitions by consuming high amounts of pasta. What macromolecule are they filling up with, and why is this practice important for athletes?

the series of molecules through which excited electrons are passed down thylakoid membrane is called

The primary purpose of deregulation is to a. decrease competition in the affected industries. b. remove certain industries from old-line economic regulations. c. protect the natural environment. d. allow natural monopolies to form.

Assume that a cross is made between AaBb and aabb plants and that the offspring occur in the following numbers: 106 AaBb, 48 Aabb, 52 aaBb, 94 aabb. These results are consistent with the following circumstance:

A cross between parents that differ in one trait