Which type of lifestyle is demonstrated by bacteria in biofilms?
A. Planktonic
B. Sessile
C. Parasitic
D. Photoautotrophic
Answer: B
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For each statement, indicate whether it is True or False. If you choose False, briefly explain why the statement is incorrect. True or false. Secondary consumers have more energy or power than do primary consumers
What will be an ideal response?
Meiosis produces _____
a. sperm cells b. egg cells c. body cells d. sperm and egg cells e. sperm, egg, and body cells
The displacement loop (D-loop) may be a characteristic of
A) centromeres. B) telomeres. C) A-DNA. D) B-DNA. E) Z-DNA.
Cells use membranes to help maintain set ranges of ion concentrations inside and outside the cell. Which of the following ions is the most abundant outside a typical mammalian cell?
(a) Na+ (b) K+ (c) Ca2+ (d) Cl–