In a comparison of birds and mammals, having four limbs is _____
A) a shared ancestral character
B) a shared derived character
C) a character useful for distinguishing birds from mammals
D) an example of analogy rather than homology
Answer: A) a shared ancestral character
Biology & Microbiology
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Bacteria that do not have a fixed shape are said to be ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Match each type of muscle with the correct description of its structure.
Biology & Microbiology
Where is partial pressure of CO2 the highest?
a. atmosphere b. skeletal muscle c. capillary bed in alveolus d. alveolus (lung air sac)
Biology & Microbiology
Cold is preferred for storing food because it retards microbial growth by slowing down metabolic processes.
Answer the following statement true (T) or false (F)
Biology & Microbiology