Compared with the interstitial fluid that bathes active muscle cells, blood reaching these muscle cells in arteries has a _____
A) higher
B) higher
C) greater bicarbonate concentration
D) lower pH
E) lower osmotic pressure
Answer: A
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Adenine binds to thymine via three hydrogen bonds
Indicate whether this statement is true or false.
There are fewer antifungal, antiprotozoan, and antihelminthic drugs compared to antibacterial drugs because fungi, protozoa, and helminths
A. are not affected by antimicrobials. B. have fewer target sites in their cells compared to bacteria. C. are so similar to human cells that drug selective toxicity is difficult to achieve. D. do not cause many human infections. E. are parasites found inside human cells.
Many bacteria are naturally capable of taking up endogenous fragments of DNA in their environment, a phenomenon termed
A) conversion. B) transformation. C) hybridization. D) transfection. E) conjugation.
What type of fish use internal fertilization to reproduce?
A) clownfish B) muskellunge C) swordfish D) sharks