What definition describes the background extinction rate?
Answer: the rate of species loss through normal evolutionary processes
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Tumor cells of the immune system that produce large quantities of antibodies and can be readily cultivated are called ________.
A. lymphoma B. myeloma cells C. monoclonal antibodies D. All of the choices are correct.
An ecological equivalent is a group that has evolved dependently in the same habitat and displays different adaptations
Indicate whether the statement is true or false
Membranes that line the tubes and cavities of the digestive, respiratory, and reproductive systems are
called a. mucous. b. dense, regular. c. desmosomes. d. apocrine. e. serous.
The _____ ______ is found outside the cell membrane in plants and bacteria and provides support and protection.
Fill in the blank(s) with the appropriate word(s).