What are plasma membranes permeable to
What will be an ideal response?
Ans: this is permeable to non polar molecules such as CO2
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Although most biologists believe that many species are becoming extinct each year because of the activities of humans, relatively few species actually appear on compiled lists of extinct species
What is one reason why so few species are listed as extinct? A) Many species are unknown to science and go extinct before they've been described. B) There really aren't that many species that have become extinct. C) Many species aren't listed because they aren't considered important. D) Only extinctions that are naturally caused are listed.
A ____________ metabolizes the organic matter of dead organisms.
A) parasite B) saprobe C) photoautotroph D) all of the above
Microbes today are used in many ways to help improve our lives. Which of the following is NOT a contribution by microbes?
tofu laundry detergent antibiotics vitamins
Which statement(s) best describes elements of the Fisher–Muller hypothesis for adap-tive advantage of sexual reproduction?
a. Sex breaks down linkage disequilibrium. b. Sex slows down adaptive evolution by disrupting coadapted gene complex-es. c. Sex facilitates the combination of favorable mutations that originated in dif-ferent individuals into advantageous genotypes. d. Sex accelerates adaptive evolution. e. A, C, and D.