How does the hydroelectric dam pictured here impact the environment?

a. by generating significant heat that artificially warms nearby water
b. by producing greenhouse gases
c. by releasing toxic chemicals in their emissions
d. by blocking fish migration

Where can you find prokaryotic and eukaryotic cells?

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.

In which part of the body is a ball-and-socket joint found?