Assume there are 1000 units of energy in the producer level of the energy pyramid. How many units of energy are available at each of the three consumer levels? Show your calculations.

Hunting reduced the population size of the northern elephant seal to as few as 20 individuals at the end of the 19th century.

Where sugar concentration is high, what is the source of water taken in by phloem

The original gene for the production of a human hormone was most likely removed from a

Moral treatment is to as mental hygiene is to A. Paul Broca; Dorthea Dix B. Philippe Pinel; Margaret Washburn C. Dorthea Dix; Philippe Pinel D. Philippe Pinel; Dorothea Dix

Which type of electron microscope is used to view the surface of specimen in great detail?

Scientists make two types of observations that can be either

Of the following muscle types, which has the longest muscle cells and has obvious stripes called striations? Of the following muscle types, which has the longest muscle cells and has obvious stripes called striations? a. cardiac muscle b.

Maya made the diagram below to represent ultraviolet rays, radio waves, gamma rays, and infrared rays based on their properties. Four waves labeled A, B, C, and D are shown.

The Champaign-Urbana metropolitan area (population 150,000) has long been suffering from the heinous pathogenic bacterium, Michiganious wolverinous, which causes rabid wolverine fever.

Which of the following is the strongest evidence that protein structure and function are correlated? a. Proteins can readily form hydrogen bonds with water. b. Denatured (unfolded) proteins do not function normally. c.