71.   The carbon is on the slide because bacteria need a food source to live and multiply.

72.   The birds scatter the indigestible seeds in their droppings, perpetuating a seasonal food source.

73.   The consumer scare forced growers to come up with ways to change their crop from a seasonal to a year-round food source.

74.   The food source draws fish, which draw fish-eating birds and human fishing crews.

75.   The goal of plowing is to destroy a food source for the worms and possibly kill some of the pests.

76.   The Hexaflumuron bait does not attract termites, it only exists as an alternate food source.

77.   The hydroids devour the small crustaceans called copepods on which fish larvae feed, depriving them of their food source.

78.   The leatherbacks time their movements to coincide with emerging food sources, usually jellyfish, to satisfy their voracious appetites.

79.   The new methods involve messenger chemicals called pheromones that are emitted by insects to attract mates, signal danger or alert fellow insects to food sources.

80.   The number of copepods matters to many other animals, who use them as a food source.