The oily secretion that lubricates the hair follicles of the skin is
A. sebum.
B. eczema.
C. suder.
D. acne.
A
Biology & Microbiology
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Which of the following statements is the most accurate description of fruits and seeds?
A. "Fruits" and "seeds" are synonymous terms. B. Fruits always have fleshy coverings and seeds always have hard ones. C. Fruits are ripened ovaries containing seeds. D. Fruits have endosperm but seeds do not. E. All of the choices provided are incorrect.
Biology & Microbiology
An enzyme raises the activation energy of the reaction it catalyzes
__________________ Indicate whether the statement is true or false.
Biology & Microbiology
Which pathogens require a host cell because they aren't able to make proteins on their own?
A) blue-green algae B) bacteria C) protozoans D) viruses
Biology & Microbiology
Which biochemical unit encodes a single protein?
Biology & Microbiology