What is the symbiotic relation of sloth bear and algae?

Biology Help.. help me please!?

• LAB WORK. 2) What single factor will you vary? For example, will you put no Didinium in one culture of Paramecium and 5mL of Didinium culture in another culture of Paramecium? 3) How long will you observe the populations? --------------------------------------… (NON LAB WORK) VOCABULARY: 1) Any close and permanent association among organisms of different species - 2) A simple model used to show how matter and energy more through an ecosystem - 3) Interactions among the populations in a community and the community's abiotic factors - 4) Organisms that use energy from the sun or energy stored in chemical compounds to manufacture their own nutrients - 5) strategies and adaptions a species uses in its enviroment - 6) Which of the following would be abiotic factors for a polar bear? A) extreme cold, floating ice B) eating only live prey C) large body size D) paws w/ thick hair. 8) Which of the following would most decrease the amount of carbon dioxide in the air? A) a growing maple tree B) a running dog C) a person driving a car D) a burning forest 9) Which of the following describes energy and matter in ecosystems? A) Both energy & matter are completely recycled. B) Matter recycles, but some energy is transferred. C) Energy is recycled, but most matter is not. D) Both matter and energy are completely lost. 10) Decomposers are all microorganisms. Review the role of decomposers in food chains and explain how they can both maintain and disrupt the equilibrium or balance of an ecosystem. Use a specific example in your explanation. 11) Identify and describe an ecosystem in or around your home. List all the biotic and abiotic factors interacting there. --------------------- 1) Identify some common limiting factors. 2) Explain how limiting factors and ranges of tolerance affect distribution of organisms. 3) Sequence the stages of ecological succession. 4) Describe the conditions under which primary and secondary succession take place. -------- 12) According to the law of conservation of matter, matter can neither be created nor destroyed. Make a relationship between this statement and the recycling of carbon in an ecosystem. 13) In a food chain, explain what the arrows mean. 14) Draw and label a pyramid of numbers that includes the components : deer, cougar, grass. 15) The three-toed sloth often is camouflaged by algae. Which type of symbiosis does this represent and why? 16) What are some reasons amphibian populations may be decreasing? Suggest ways to reverse the decline to your class. THANKS (:

• Answer:

  13) arrows are the energy that is passed on to the consumer eg. If I eat the plant then I get the plants energy!