Hydrothermal vents are found deep on the ocean floor. Despite the harsh conditions, life has found a way to thrive here. Giant tube worms grow around these vents. In the absence of sunlight, a different way of obtaining energy is needed. Chemosynthetic bacteria live inside the tissue of the tube worms providing them with food. In return the bacteria has a place to live. This is an example of which biological interaction?

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.