In the territorial behaviour of the stickleback fish, the red belly of one male
ID: 3441 • Letter: I
Question
In the territorial behaviour of the stickleback fish, the red belly of one male elicits attack from another male by functioning as a pheromone a sign stimulus. a fixed action pattern. a search image. an imprint stimulus. Which of the following statements about genes is incorrect? Genes correspond to segments of DNA. Many genes contain the information needed for cells to synthesize enzymes and other proteins. During fertilization, both the sperm and the ovum contribute genes to the resulting fertilized egg. One gene only is used in a specific cell type. Genetic differences can result from changes in the DNA called mutations. Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems? Many primary and higher-order consumers are opportunistic feeders. Decomposers compete with higher-order consumers for nutrients and energy. Nutrient cycling involve both abiotic and biotic components of ecosystems. Nutrient cycling rates tend to be limited by decomposition. Energy transfer between trophic levels in almost all cases less than 20% efficient.Explanation / Answer
1. C) FAP. I suggest you over your notes for this as it is quiteclear. 2. D) False as you can easily prove the opposite. 3. E) If there was better efficiency, there would be moresustainability.