One property that makes DDT hazardous over the long run is that DDT is

A. an insecticide.

B. a perfect pesticide.

C. subject to biological magnification.

D. deadly to herbivores.

Rainbows are more beautiful after fall rainstorms than spring rainstorms. This statement is a poor hypothesis because it is not A. a question. B. testable. C. observable. D. a comparison.

The process of making changes in the DNA code of a living organism is called a. selective breeding. c. inbreeding. b. genetic engineering. d. hybridization.

Describe the spores produced by seed plants.

An illness causes doug to experience severe diarrhea and an accompanying loss of bicarbonate-rich secretions. how can this metabolic acidosis be compensated?

Who discovered the monomers of nucleic acids?

Which organelle does the krebs cycle take place?

A journal report indicates that greenhouse gases, such as methane and carbon dioxide, are primarily responsible for the phenomenon of global warming. The report concludes that the greenhouse effect is detrimental to all life on Earth.

During evolution, the idea proposed by Darwin that some characteristics make organisms more or less likely to survive is called

Which term identifies the process used by the cell to remove large molecules?

Name two processes in model 1 in which water is converted to vapor