Which of the following is defined as "heat content"?
A) energy output
B) heat loss
C) entropy
D) solar radiation
E) enthalpy
E) enthalpy
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The branch points on a cladogram represent ____
a. the species' extinction b. derived characters c. related clades d. a common ancestor of two lineages e. mass extinctions
Which of the following is not a part of the whole genome shotgun method of genome sequencing?
1.The entire genome is broken up into random overlapping pieces. 2.Each fragment is cloned. 3.Each fragment is sequenced. 4.The genome sequence is assembled by computers. 5.Northern blots are performed.
Cellular respiration can be described as the conversion of the energy ________.
Fill in the blank(s) with the appropriate word(s).
Mucous membranes are quite thin and fragile. How can such delicate tissue provide defense against microbial invaders?
A. the mucus secreted by the mucous membrane physically traps microbes. B. the mucus contains a variety of antimicrobial chemicals and molecules. C. both the mucus and the outer layer of cells are shed frequently. D. the mucus is a physical trap that contains a variety of antimicrobial chemicals. E. the mucus physically traps microbes, contains a variety of antimicrobial chemicals, and is shed constantly, along with the outermost layer of cells.