Despite differences arising from environmental variation, all foraging economies have shared one essential feature:
A. their emphasis on devising new forms of organic pesticides.
B. their reliance on welfare supplied by state-level societies.
C. their willingness to test out new food-producing technologies to see if they are any better than what they are used to.
D. their interest in developing irrigation technologies to control sources of water.
E. their reliance on available natural resources for their subsistence, rather than controlling the reproduction of plants and animals.
Question 2
Which of the following was a characteristic shared by recent foraging communities?
A. They fished a great deal.
B. They relied on welfare supplied by state-level societies.
C. They spoke simplified languages.
D. They lived in marginal environments that were of little interest to food-producing societies.
E. They devolved to foraging from a more advanced level of subsistence.
Variation in shape and length of nerve cells.
Organisms exhibit a diversity of behaviours, which include (clockwise from upper left), foraging and
(a) Homologous traits are similar due to shared ancestry. (b) Analogous traits (bats’, birds’, and f
John Lewis Krimmel’s painting of the Fourth of July in Centre Square Philadelphia (1812) shows the d
Environmental Challenges
Natural selection acts on genetic variation