Is it possible to have a food web without producers? Explain

What is the largest source of water pollution in the United States?

An advantage of biomass to liquid fuel synthesis is that there is no net increase of carbon into the atmosphere. True False

A male patient presents with the following respiratory volumes and capacities : tv = 500 ml; erv=1200 what is the patients vc.?

How does dna to amino acids work

Repeating tests usually leads to O more independent variables. more accurate measurement. O more confidence in the results. O more controls in an experiment.

Isaac watched a movie where a tsunami washed across the coastline. He related the incident to the geology of the ocean he learned at the school. Which geological phenomenon did Isaac relate to? A. plate tectonics B. upwelling C.

How do mutations affect an organism? A. they may cause the development of a disease-causing allele B. they may cause the development of a more beneficial allele C. they, in some cases, may have no noticeable affect D. all of the above

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.