The enzymes that act inside the small intestine are amylase, protease, and lipase. Amylase acts on starch and breaks it down into small carbohydrate molecules. Protease acts on proteins and breaks them down into amino acids. Lipase breaks down dietary fats into smaller molecules called fatty acids and glycerol.
Sandhill Cranes mate for life, choosing their partners based on dancing displays. Displaying birds stretch their wings, pump their heads, bow, and leap into the air. Although each female usually lays two eggs, only one nestling typically survives to fledge.
1) How do cicadas find a mate? Horton: âThe sound organ in cicadas are tymbals, drum-like structures on the abdomen of the insect. In most species only males have these organs. They are used to âcallâ females or warn of nearby predators. Females can make sounds but they âflickâ their wings to answer the mating calls.â 2) How do cicadas reproduce? Horton: âAfter the male and female cicada have mated (3-5 days) the female will lay fertilized eggs 24+ in slits cut with her ovipositor on small live twigs.