One type of symbiosis is called mutualism. Which of the following is an example of mutualism? mangrove trees in swamps with long roots provide habitat for small fish which provide "fertilizer" to support the trees
lions hunt zebras and keep them from overgrazing the savanna
fleas bite dogs and other mammals, obtaining blood
birds ride on the back of wildebeest, eating the bugs that the wildebeest disturbs as it walks

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.