Gregor mendel a. developed theories of evolutionary change. b. discovered the structure of the dna molecule. c. studied characteristics that are influenced by several genetic loci. d. discovered the fundamental principles of how traits are inherited. e. developed the theory of inheritance of acquired characteristics.

Individuals do not compete directly for resources, but are prey for the same predator

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic

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.