In terrestrial ecosystems, primary productivity is highest in warm, wet places with plenty of sunlight, like tropical forest regions. In contrast, deserts have the lowest primary productivity. In marine ecosystems, primary productivity is highest in shallow, nutrient rich waters, such as coral reefs and algal beds. Which of the followingRead More →

Resource guarding is normal dog behavior. Dogs have evolved as opportunistic feeders, and it’s natural for them to protect what they consider to be “theirs” from potential takers. The displays of growling and related body language are the dog’s way of saying, “Back off! Will my dog ever stop resourceRead More →

Biomass—renewable energy from plants and animals Biomass is renewable organic material that comes from plants and animals. Is biomass is an example of a renewable energy resource? They include energy generated from solar, wind, geothermal, hydropower and ocean resources, solid biomass, biogas and liquid biofuels. Biomass, however, is a renewableRead More →

Resource dependence theory posits that powerful referral sources may focus primarily on core substance abuse treatment services and that substance abuse treatment units may respond to these performance pressures by deemphasizing potentially complementary services such as health care and life skills counseling. What is the premise of resource dependence theoryRead More →