All the organisms that occur in a community dominated by birch trees... Group of choice Are part of the same population of organisms Have overlapping niches Occupy the same level on the food web
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- Why are terrestrial autotrophs responsible more global productivity than marine producers? higher local biomass per unit productivity ocean temperature limit cellular physiology currents stress out the plankton terrestrial CO2 is more accessible for uptake all of the aboveIndentify the correct food web for each question. Which type of food web cycles materials and moves energy into and out of the community? Grazing Which type of food web is dominant in Central Park's forests and pond? Detrital Which food web includes humans? Grazingwhich of the following statements about algal bloom and eutrophication is true? 1. Eutrophication is typically caused by the removal of nitrogen and/or phosphorus 2. algal blooms cannot produce toxic substances that threaten drinking water 3. when algae in an algal bloom die, decomposition produces excess oxygen, which can kill fish 4. algae populations grow when limiting nutrients become more available
- Please help Which organism is most important for this foodweb? Explain your reasoning using ecological principles and knowledge of community ecology?Marine Food Web 1. Identify one food chain: -> 2. Place a circle around the producer. Killer Whale Elephant Seal 3. Place a triangle around the herbivores. Penguin Leopard Seal 4. Place a square around the Squid omnivores. Krill Cod 5. Place a diamond around the carnivores. Zooplankton 6. Identify two predator-prey Phytoplankton relationships:I have 11 organisms. 3 Primary Producers 3 Primary Consumers 3 Secondary Consumers 2 Apex Predators/Tertiary Consumers 1 Decomposer Can you show me a food web with all of these organisms? Our science project requires a food web, and I don't quite understand how to incorporate the decomposer.
- Net primary productivity refers to the rate of energy storage as organic matter by autotrophs after respiration is deducted the total rate of photosynthesis, or energy assimilated, by autotrophs the amount of accumulated organic matter found in an area at a given time the production of new tissues and offspring by heterotrophsDesign a logical food-web model of the living things in a typical deciduous forest. Producers should form the bottom of the web, with primary consumers and secondary consumers in the middle of the web, and tertiary consumers at the top of the web. Detritivores can be found throughout the web. Draw lines between the organisms that directly interact with each other. Organisms may have more than one line drawn from them or to them. In your model, include the sun, and illustrate how heat is lost as energy transfers from one trophic level to the next. Producers: maple tree dogwood tree spicebush (flowering shrub) Jack-in-the-pulpit (flower) Primary Consumers: spicebush swallowtail butterfly honeybee carpenter ant Secondary Consumers: woodpecker garter snake flycatcher (inset-eating bird) Tertiary Consumers: falcon screech owl bobcat Detritivores: bacteria earthworms flies fungiWhich of the following best describes bottom up control of an ecosystem? toxic compounds in mature leaves prevent herbivory by some consumers keystone predation of sea otters on sea urchins mesopredator consumption of small mammals parasitoids infesting a tomato hornworm
- The limiting nutrient in an ecosystem is the nutrient; that is the most scarce nutrient that is needed for more growth to occur that is limited however is not needed by many organisms in the system is almost always carbon dioxide is almost always nitrogen gasGive your three strongest arguments for preserving this ecosystem.The make-up of the microbial community in the leaves of pitcher plants is affected more by the types of predators than the number of predator species