Both aquatic and terrestrial organisms must have __________ across which gas exchange can take

place.
a. a respiratory system
b. tracheal tubes
c. gills and lungs
d. stratified squamous epithelial tissue
e. a moist surface


E

Biology & Microbiology

You might also like to view...

Organisms that grow near deep-sea volcanic vents are likely to be

A. picrophilic. B. alkylophilic. C. barophilic or barotolerant. D. acidophilic.

Biology & Microbiology

The first law of thermodynamics is a restatement of the

What will be an ideal response?

Biology & Microbiology

Mendel’s principle of segregation is directly related to an event that occurs in ______ of meiosis

A. prophase I B. metaphase I C. anaphase I D. prophase II E. metaphase II

Biology & Microbiology

Usually, bacteria only make tryptophan when tryptophan is absent or available in low concentration. However, a particular bacterial mutation makes tryptophan all the time whether or not tryptophan is present. What could explain this phenotype?

A) trpA is mutated B) trpE is mutated C) trpD is mutated D) the antiterminator hairpin is unable to form E) the terminator hairpin is unable to form

Biology & Microbiology