1. False
Speciation is the formation of new species from a population of species. This process has three main stages: isolation, where the population is separated; adaptation, where the isolated population adapts to the new environment; and reproductive isolation, where the two populations can no longer breed to produce fertile offspring.
2. Behavioral isolation
This occurs when there is a difference in mating rituals or other behaviors which prevent interbreeding.
Properly dispose of hazardous household items. Oils, anti-freeze, paint, solvents, cleaners, preservatives, and prescription drugs should not be poured down a household or storm drain. Check with your county waste management service to find out what hazardous materials they accept.
Reduce or eliminate use of fertilizers and chemical herbicides and pesticides. Learn to live with a dandelion or two. Lawn fertilizers and chemicals are a big source of nitrogen and phosphorus pollution and toxic runoff.
Proteins, carbohydrates, and fats all contain three main elements <em>carbon, hydrogen, and oxygen.</em>
However proteins contain nitrogen, and element not found in carbs or fats.
Hope I helped! :)