Anaerobic organisms reside in the ________ zone of a lake.
A. limnetic
B. benthic
C. littoral
D. profundal
E. both the littoral and the profundal
Answer: B
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Which mineral important for nerve cell
function and muscle contraction is stored in bone?
a. calcium b. phosphorous c. potassium d. sodium e. magnesium
As intraspecific competition increases, growth and development are affected first, followed by individual survival and reproduction
Indicate whether the statement is true or false
Signal-recognition particle RNA is involved in directing the ribosome-mRNA-polypeptide complex to the rough ER
__________________ Indicate whether the statement is true or false.
Which protein did Davis, Weintraub, and Lassar look for in their fibroblast colonies to positively identify the presence of skeletal muscle cells?
A. collagen B. myofibril C. tubulin D. myosin E. actin