Lawn fertilizers often contain phosphorus. sometimes these fertilizers runoff into lakes. once in a lake, the excess phosphorus may affect algal growth and cause eutrophication in the lake. which best describes how the phosphorus affects the algae?
- it reduces algae habitat size.
- it increases the number of trophic levels algae occupy.
- it increases the carrying capacity of lakes for algae.
- it improves algae adaptability.

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

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.