Why is it difficult to measure the "carrying capacity" of the earth?
What will be an ideal response?
It depends on available technology, populations vary in their consumption levels, and how we estimate depends on the value we place on preserving certain areas of the natural world and keeping them out of use.
You might also like to view...
Homo erectus most likely migrated out of Africa prior to 1.8 million years ago as
A) carnivores B) scavengers and gatherers C) hunters and gatherers D) specialized frugivores E) none of the above
Each amino acid is determined by specific three-base units called:
A. ribosomes B. nucleotides C. proteins D. codons
According to Clifford Geertz, people impose meaning on their actions and experiences because:
a) without these, all actions and experiences would appear to be pointless and random. b) our brains compel us to do so. c) otherwise, they would be unsure of how to act. d) without such meanings outsiders would be unable to understand these experiences.
Sexual selection does not seem to be an important factor in the evolution of sexual dimorphism
Indicate whether the statement is true or false