The diagram shown represents a portion of a food web in a Long Island ecosystem. The numbers show the
concentration of DDT in parts per million (ppm) in the body
tissues of the various organisms.
Which represents a food chain in this food web?

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.

What do you need to use in order to work as an environmental scientist? you need to use the scientific method and__ in order to work as an environmental scientist.