No. 026
The role those anthropologists ascribe to evolution is not of dictating the details of human behavior but one of imposing constraints – ways of feeling, thinking, and acting that “come naturally” in archetypal situations in any culture.
No. 027
Q26. Which of the following most probably provides an appropriate analogy from human morphology for the “details” versus “constraints” distinction made in the passage in relation to human behavior?
No. 028
A low number of algal cells in the presence of a high number of grazers suggested, but did not prove, that the grazers have removed most of the algae.
No. 029
Perhaps the fact that many of these first studies considered only algae of a size that could be collected in a net (net phytoplankton), a practice that over-looked the smaller phytoplankton (nannoplankton) that we now know grazers are most likely to feed on, led to a de-emphasis of the role of grazers in subsequent research.
No. 030
Studies by Hargrave and Geen estimated natural community grazing rates by measuring feeding rates of individual zooplankton species in the laboratory and then computing community grazing rates for field conditions using the know population density of grazers.