Biological indicator species are those whose overall health and population numbers can offer a signal of the overall health of an ecosystem. Explain why fish, specifically steelhead trout, would be an effective indicator species.

The valve seat performs two functions: it provides a seal for the valve in the combustion chamber, and it provides a cool surface to carry heat away from the valve. most valves use a seating angle.

Exaggerated clams about a product appeared in advertising and on the product packages what are some examples of false promises made in marketing

4. when a child cries out during rough play, the caregiver should a. encourage the distressed child to fight back. b. respond immediately, since the behavior has changed to fighting. c. ignore it, because rough play is a natural part of children’s learning. d. ignore the request for unless there has been an injury. i need answer