Explain why natural selection would have favored a closed circulatory system for cephalopods
What will be an ideal response?
A closed circulatory system distributes blood more efficiently, thus ensuring that all cells get an adequate supply of glucose and oxygen for ATP synthesis. Cephalopods are predatory creatures and rely on speed and stealth to catch their prey.
You might also like to view...
Glycolysis is:
A. aerobic. B. anaerobic. C. aerobic in some organisms but anaerobic in others. D. aerobic in some tissues but anaerobic in others. E. None of the answer options is correct.
You discover a fungus that only makes sexual spores (no asexual spores). The spores are made in groups of four on
the tips of club-shaped structures. Into which group should you classify this fungus?
a. Glomeromycota b. Basidiomycota c. Chytridiomycota d. Zygomycota e. Ascomycota
Which statement is NOT generally characteristic of parasites?
a. They are specialists and usually are able to affect only one variety of hosts. b. They inflict serious injury and kill their hosts. c. Some reside inside their hosts, whereas others live outside their hosts. d. Their host may be a plant as well as an animal. e. Plants as well as animals can be parasites.
Which of the following genetic abbreviations denotes a male human?
a. 23, XX b. 46 XX c. 23, XY d. 46, XY