Although Clostridium perfringens Type B is not considered a significant problem in the U.S.A., immunity may be provided against the beta and epsilon toxins elaborated by Cl. perfringens Type B. The immunity is derived from the combination of Type C (beta) and Type D (epsilon) fractions.
What do sea lampreys eat? A: Sea lampreys feed off the blood of large fish, including trout, salmon, whitefish, carp, catfish and sturgeon. The sea lamprey is native to the Atlantic Ocean but infiltrated the Great Lakes region in the 1920s and '30s during canal construction.
Dragonflies eat mosquitoes, flies, bees, ants, termites, butterflies, and other small insects. Dragonflies eat a variety of insects in their diets. The exist primarily on mos â¦ quitoes, but will also eat beetles, flies and even other dragonflies.