If the NaCl concentration drops below 1.5 M the cell walls of Halobacterium become more rigid.
Answer the following statement true (T) or false (F)
False
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Which drug, if taken during pregnancy, results in infants with severely deformed arms and legs?
a. tetracycline b. thalidomide c. streptomycin d. salicylic acid e. codeine
A-T base pairs in a DNA double helix
A: are of a substantially different length than G-C base pairs. B: are chemically distinct from G-C base pairs. C: are not accessible to DNA binding proteins. D: are more heat stable than G-C base pairs. E: form three hydrogen bonds with each other.
These are some of the symptoms seen in persons with the eating disorder known as _____: thin, dry, brittle hair; degradation of fingernails; constipation; amenorrhea (lack of menstrual periods); decreased heart rate; loss of body proteins; weaker heartbeat.
A. obesity B. anorexia nervosa C. bulimia D. All of these answers are true.
which foods good source of fiber
What will be an ideal response?