The box-and-arrow model below summarizes some of the feedback links observed in the Amazon rain forest. Select true statements, based on whether they are represented by the model. (Note that the boxes and arrows in this model are used differently than those in the nutrient cycle models.) Select all of the ones that apply.  A) An increase in CO2 increases the frequency of droughts. B) The death of trees promotes the invasion of grasses. C) Tree growth reduces atmospheric CO2. D) The burning of fossil fuels increases atmospheric CO2. E) Drought increases the frequency of forest fires.

Q: explain how this relates to both resiliency and biodiversity

A: Resiliency means the potentiality of an ecosystem to regain its normal pattern after damage or…

Q: Why is it necessary for cells of the cardiac atria and ventricles to contract in a coordinated…

A: Introduction :- Blood from the veins enters the two atria, which have thin walls. The heart's two…

Q: A characteristic of the open-loop system is that it does not use feedback to determine if its output…

A: The natural processes by which carbon is transferred between the atmosphere, land, oceans, and…

Q: Consider two bird species that forage for insects that live in shrubs. The shrubs have a clumped,…

A: Acording to the MVT model all animals must forage for food in order to meet their energetic needs,…

Q: About 25 years ago, the crazy ant (Anoplolepis gracilipes) was introduced to Christmas Island (a 134…

A: The yellow crazy ants are invasive species. Invasive species is introduced organisms which…

Q: Choose a biological resource and address the following four questions using examples with that…

A: Resource economics is a field of research within a population in relation with the economics that…

Q: Which of the following would be a reason why incumbents may have an absolute cost advantage over…

A: ♦ANSWER♦ Option C is the correct answer to this question.

Q: The graph shows the rate of transpiration (Est) for four plant species. Nothofagus dombeyi was the…

A: N.dombeyi at mid day in summer, suggesting reversible reduction in photochemical efficiency of…

Q: In the year 2000, specimens of Caulerpa taxifolia,a green alga used in tropical aquariums, were…

A: Invasive species are those species that are non-native to any geographical area i.e. they are…

Q: Design a logical food-web model of the living things in a typical deciduous forest. Producers should…

A: A food web is a model that consists of all the food chains in a single ecosystem.. It is divided…

Q: Which set of values for the intrinsic rate of increase, finite rate of increase, and net…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: The figure below shows the degree of stomatal opening in three plant species during the course of a…

A: Transpiration is a process of water loss from plants through evaporation into the atmosphere.

Q: Imagine five forest communities, each with one hundred individuals distributed among four different…

A: Community diversity means the variety or diversity of organisms in a particular habitat sharing the…

Q: The chapter describes the research conducted by ecologist Bob Paine. When Paine was in graduate…

A: "Bottom-up" control in ecology means that changes in the number of plants (the bottom of the food…

Q: An ecologist studying plants in the desert performed the following experiment. She staked out two…

A: Kangaroo rats are mostly seed eaters, eating mostly mesquite beans and grass seeds. Occasionally the…

Q: Which of the following statements about the effects of clear-cutting on the Amazonian forest are…

A: Clear-cutting is a method of logging that involves the removal of all trees in a given area. This…

Q: Assume that the producer level in your trophic pyramid contains 12,000,000 kcal of energy. Write the…

A: Trophic level is the position an organism is at in the food web. They are classified in levels and…

Q: Why is regular burning (thru natural fires) an important part of maintaining the health of…

A: Grasslands refer to the area where a major part of the vegetation is grasses. Grasslands are present…

Q: There are many theories that explain why there is higher species richness in the tropical rainforest…

A: The rainforest is of two kinds tropical and temperate rainforest. Tropical rainforests are located…

Q: Some people believe our most important goal should be to sharply reduce the rate of population…

A: Population change is driven by two forces, namely natural increase and migration. In the state,…

Q: Now that you have calculated the total catfish biomass in this pool based on the 10% rule, you can…

A: 10% rule means only 10% energy stored in the body of an organism is passed from one trophic level to…

Q: An ecologist studying desert plants performed the following experiment. She staked out two identical…

A: The study of interrelationship between the living organisms and its environment is known as ecology.…

Q: 9)In the video, Dr. Paine says, "all animals are equal, but some animals are more equal than…

A: Answer:- Option B is the correct choice. Some animals have greater effects on their ecosystem than…

Q: the past 15 years, affected woody plants in forest ecosystems. deer populations in Canada nave…

A: Population -- The term population encompasses a group of organism of a single species that can…

Q: group of researchers are assessing energy availability in a terrestrial ecosystem. The image shows…

A: Food web is the interconnection between the different food chains.

Q: Hypothetical balanced food chain. Sun and Earth supply 6 units of energy to each plant. For higher…

A: Introduction: Each step of a food chain is termed trophic level. Example, Grass → Insect → Frog →…

Q: Do you think we should attempt to quantify and assign market values to ecosystem services? Why or…

A: Introduction: The ecosystem is a whole biotic community i.e. the living components, in a given area…

Q: In the Yellowstone National Park example, what happened to the aspen and willow trees after the…

A: The answer is Option c) Plants declined in abundance. The wolves feed the herbivores elk…

Q: An ecological pyramid is a graphical representation of the relationship between the different living…

A: Ecological pyramids are also referred to as energy pyramids, and they are of three major types.

Q: Describe a food chain that has at least four different trophic levels. Label the tropic level…

A: As per the guidelines we are supposed to answer only first question in case of multiple posted.…

Q: 5. The scale of a landscape is _________________.     A)  the spatial dimension of an ecological…

A:

Q: Using the African Savannah food web below, describe what would happen to various animals and plants…

A: The African savannah food web characterized by grasses and little or spread trees, in conjunction…

Q: An ecologist studying the availability of nutrients and the distribution of the plants that live in…

A: Ecology is a branch of science that deals with the interactions between biotic and abiotic factors.…

Q: Name two of the most important factors that will determine the carrying capacity of a desert…

A: An ecosystem is the structural and functional unit of the biosphere. The biosphere is the region…

Q: (A B) D Biodiversity Biodiversity

A: In the beyond twenty years, countless examinations have explored the connection among biodiversity…

Energy Flow

Energy flow is the continuous and directional flow of energy through living beings within an ecosystem. All living beings can be segregated into producers and consumers. These producers and consumers can be further divided in a food chain. The term ‘trophic level’ is assigned to each level of the food chain.