Place the following events in the correct sequence in which they would occur in a signal transduction pathway. 1. Conformational shape change occurs 2. Ligand binds with a receptor protein 3. A cascade of events amplifies and changes the signal 4. The cellular process of transcription is carried out within the cell 5. The activation, by phosphorylation, of a transcription enzyme *

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.

the answer is "a.) well–developed vascular system."

explanation: