The cytoplasmic membrane of Picrophilus is extremely acid impermeable at very low pH
Indicate whether the statement is true or false.
Answer: TRUE
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If a geneticist is studying the prevalence of a trait in a species, they are at the _________ level of study
A. population B. organismal C. cellular D. molecular
Which plant's seeds are "naked", or not within a fruit?
a. angiosperms b. gymnosperms c. bryophytes d. endosperms e. lycophytes
Which of the following is NOT true of human
chromosomes? a. The haploid number is 23. b. The diploid number is 46. c. There are 23 pairs of chromosomes. d. Human gametes end up with two of each type of 23 chromosomes. e. Human gametes end up with one of each type of 23 chromosomes.
If the inner lining of the air sacs is neither thin nor highly vascularized, then what can be inferred about the air sacs?
A) They must not belong to the respiratory system. B) They cannot be derived from endoderm. C) They are not efficient sites of gas exchange between air and blood. D) They cannot effectively moisturize the air before it reaches the lungs.