The stimulus materials discussed selecting certain traits as the basis for breeding known as artificial selection or selective breeding. How did such variations in the population of domesticated horse species Equus caballus occur? Select one:
A. Tropism
B. Acquired traits
C. Inherited traits
D. Vestigial structures

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

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.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?