The bacterium Borrelia burgdorferi is the cause of Lyme disease. Certain types of ticks carry the bacteria. Which of the following describes the method through which humans can contract the disease? Group of answer choices

person to person

contaminated water or food

environmental factors

animal to person

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.