ecologist are concerned about the accumulation of harmful chemicals are positions on predators such as the Barn Owl. DDT, PCBs, organophosphate pesticides, and heavy metals such as mercury are some of these chemicals. Why do you think predatory animals like owls are often threatened in habitats that have been exposed to these chemicals?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy

In 1992, hurricane andrew left a wake of destruction through florida. one victim of the storm was a reptile-breeding facility. over 900 burmese pythons were set free, and today thousands of pythons live in florida. these pythons are an invasive species, or a harmful species not native to the region. 1. what impacts do you think the burmese pythons might have on local ecosystems