Over the past few thousand years, humans have
to bring about changes in many plant and
animal species in order to make them more
useful. examples include strong workhorses,
hunting dogs, large-eared corn, and beautiful
flower varieties. these changes were primarily
brought about by humans, using the process of
(1) mitosis (3) cloning
(2) selective breeding (4) natural selection

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry

Which description provides the best objective summary of the article in the passage?

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes