Will givebr /> native american indian tribes lived off the land and wildlife in america for many centuries before european settlers arrived here. in many ways, their ways of living were more sustainable than the way in which we do things now.

which of these is not a reason the indians lived more sustainably?

a) they populated the continent far less densely than we do now.

b) they considered the land and animals to be their partners, not their property.

c) they were very careful to maintain strict boundaries between tribes and nations.
d) they generally hunted, gathered, and grew what they needed for survival, not more.

answer

i would say the answer is d.

#freemelvin

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.