Life Cycle: Painted Lady butterflies undergo complete metamorphosis with four stages: egg, larva, pupa, and adult. Egg-Mint green, barrel-shaped eggs are laid singly on the leaves of host plants, and hatch in 3-5 days. Larva-The caterpillar has five instars over 12-18 days.Pupa-The chrysalis stage lasts about 10 days.Adult-Butterflies live for just two weeks. Special Adaptations and Defenses: The Painted Lady's mottled colors look much like military camouflage, and provide effective cover from potential predators.ainted Lady butterflies undergo complete metamorphosis with four stages: egg, larva, pupa, and adult. Egg-Mint green, barrel-shaped eggs are laid singly on the leaves of host plants, and hatch in 3-5 days.
Initiation of Muscle Contraction. Step 1) Neuromuscular Control. The axons of the nerve cells of the spinal cord branch and attach to each muscle fiber forming a neuromuscular junction. i). An action potential passes down the nerve. ii). The nerve releases Ca++ that results in the release of Acetylcholine (ACh) Step 2). ACh binds with the sarcolemma. Step 3). Muscle Fiber Action Potential. i).
(3) To show the steps necessary for muscle to relax. Reading material: Principles of Meat Science (5th Edition), chapter 3, pages 61 to 74. Below are two different but similar descriptions of muscle contraction that explain the processes involved in notification, contraction, and relaxation.