Integumentary exchange of gases implies that the animal ____
a. has a shell
b. has a tracheal system
c. lives in a moist location
d. has a siphon
e. lives in an arid location
ANSWER: c
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Clinical sensitivity in the microbiology laboratory refers to:
a. positive results from patients known to have an infection or disease. b. percentage of positive results from all pa-tients tested. c. percentage of patient's that test negative known to have an infection or disease. d. none of the above answers are correct.
Which of the following is not true of sister chromatids?
1.they separate at anaphase 2.they are attached to one another at the centrosome 3.at the end of interphase, there are two sister chromatids for every chromosome 4.they have the same DNA sequence as each other
Refer to Figure 46-1. The structures receiving air in figure 1 are known as:
a. anterior air sacs. b. parabronchi. c. spiracles. d. alveoli. e. tracheae.
Giant viruses are challenging the historical notion that viruses are nonliving things. What characteristic do giant viruses possess that make scientists think twice about their classification?
A. They have the ability to form conglomerates of virus particles that work together, similar to how groups of cells work together as tissues. B. They have the ability to reproduce independently without a host cell. C. They have the ability to manufacture their own proteins without the help of a host cell. D. They are large in size, similar to prokaryotic cells.