Meet students and ask top educators your questions. Which of the following best describes an ecosystem? A biome may contain many ecosystems, and ecosystems within the same biome are typically home to similar species of … a typology for data ecosystems with the two key criteria resource control and interdependence. (d)Which describes the habitat of a frog? c. It enters most ecosystems in the form of sunlight. The early Triassic period saw … ... Flow of Energy in Ecosystems. An ecosystem is made up of animals, plants and bacteria as well as the physical and chemical environment they live in. Click on the two areas that made it possible for people in these ecosystems to use the trans-Saharan trade route. Which statement best describes a population of organisms if cloning is the only method used to reproduce this population? best . ____ 57. 49. Chemoautotrophs are commonly found in environments where plants cannot survive, such as at the bottom of the ocean, or in acidic hot springs. Which of the following statements best describes why biologists are currently concerned with global warming and the thawing of permafrost in many areas of the tundra biome? community. It describes the different elements that together make up a comprehensive partner program along with key best-in-class characteristics. The framework presented in the following pages organizes some of the concepts, lessons, and best practices that we have found so far to be most … Based on their habitat. The shows show which species are related A Former soldiers began small family farms. d. all of the above Please select the best answer from the choices provided Within that area, though, there are a dozen different ecosystems, ranging from tropical lowland rainforest to coral reef, and 25% of the land and water of those ecosystems are protected as wildlife reserves, refuges, and national parks. The answer is 2.) ecotone. c. sexual selection. Which of the following best describes an ecosystem? Studies conducted since the successful reintroduction of wolves into Yellowstone National Park in the mid-1990s have reinforced our understanding of the central role that wolves play in the Greater Yellowstone Ecosystem. a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. While seagrasses occupy only 0.1 percent of the total ocean floor, they are estimated to be responsible for up to 11 percent of the organic carbon buried in the ocean. We depend on grasslands for farming and agriculture, which provides us with food. which of the following would require this theory to be modified? A) Staghorn coral has been decimated by the pathogen, and Elkhorn coral has taken its place. The primary reason for this pattern is that A) secondary consumers and top carnivores require less energy than producers. The land-sea interface or coastal ecotone is a major ecosystem where a transition area between the body of water and the shoreline is found. What best describes the relationship shown by this Kelp Forest Ecosystem pyramid? Which of the following characteristics will . Use the food web to answer the following questions. Ecosystems are composed of all living and nonliving components in an area. C. Georgia’s industries and businesses became diversified. Which ecosystem is most similar to an estuary? It shows how factors in two ecosystems interact and affect each other. Describes how energy is transfered from one organism to another. A) all of the non-living factors that characterize in a given area B) all of the different species living in a given area c) all of the members of a single species living in a given area d) all of the biotic and abiotic factors in a given area. This best describes it but is not a great definition. It flows from secondary consumers to primary consumers. Phytoplankton form the foundation of aquatic food webs. Sort by: Top Voted. They feed on prey and are the ‘bosses’ of their ecosystems. Which of the following statement about ecosystem and ecosystem ecology is incorrect? food web. Mediterranean climates are found in only five places in the world: California (extending into southern Oregon and northern Baja California, Mexico); the Mediterranean region itself; and the subtropical south or west coasts of Chile, South Africa, and Australia. If you had to describe the order of energy flow in an ecosystem, which of the following would you choose? It remains unaffected by all environmental changes.D. Minnows and fish are primary consumers. German is the most widely spoken mother tongue (18% of the EU population), and the second most widely understood foreign language, followed by French (13% of the EU population). predators. Control of point sources has been easier than non-point sources particularly agricultural … Based on their lifespan. e. artificial selection. -a.) A Warmer water will have higher dissolved oxygen, which will lead to an increase in coral reef ecosystem biodiversity. Solution for Which of the following best describes a decomposer a.An organism that feeds on biological remains and breaks down organic material into its… Identify each of the following as either a biotic or an abiotic factor. % Progress . given that most of the pcbs in the environment were released before 1980 and are still present in these ecosystems, which of the following choices best describes this phenomenon? Planners, scientists, and coastal dwellers have now come to value them as the remarkably diverse and important ecosystems they are. Companies that have long operated with relative insularity in traditional industries may be most open to cross-boundary attack. Which of the following best describes decomposers? C) ecosystem. a. A) Copulation is a fixed action pattern, and the female flight sound is a sign stimulus that initiates it. Which of the following best describes this? Total amount of energy available for the sun C. Total amount of energy produced from photosynthesis D. Total amount of energy available within an ecosystem E. Total amount of cellular respiration conducted within an Raw materials essential for life are cycled through Earth’s crust. C. It causes ocean waves to become stronger. Food webs show the ow of nutrients and energy within an ecosystem. c. The continental crust allowed the evolution of life on land. Competitive Relationships in Ecosystems. b. Fossil fuels are a valuable energy source for the biosphere. 3. B) Decomposers compete with higher-order consumers for nutrients and energy. A. Bacterial decomposers use energy from the sun to create glucose, forming the foundation of most marine ecosystems. To clarify the OP: In science, theories explain facts and observations. Glaciers scraped across the surface and altered landscapes and the course of rivers. It removes sand from the ocean floor. 15. freshwater, food, pharmaceutical products, etc) and services (e.g. Dive and Discover's Expedition 13 will take you beneath the surface of the Gulf to investigate life on the bottom of the ocean and to look for signs of impact by the oil on deep-sea ecosystems. Flow of energy and matter through ecosystems. In the trophic pyramid, how are organisms classified? Also called the Great Dying, it occurred around 252 million years ago and caused most species on Earth to go extinct. Which BEST describes most of the organisms that live there? Play this game to review Ecology. 26. biome → ecosystem → community → population → organism: During a process called _____, the destroyed acres of forest will gradually recover to support ecosystems that are very similar to … biome. Importance of phytoplankton The food web. Pages 9 ; Ratings 100% (2) 2 out of 2 people found this document helpful; This preview shows page 3 - 5 out of 9 pages.preview shows page 3 - 5 out of 9 pages. ... Ecosystems Can someone please tell me some things about ecosystems, and no co... Jared M. Science - Biology cirrus clouds are so high that they are made of tiny ice crystals true or false. Water pollution is the contamination of water by substances that are harmful to aquatic organisms. Nitrogen (N) and phosphorus (P) eutrophication in marine ecosystems is a global problem. consumers. Noah visited a park that had many oak trees. We depend on grasslands for their supply of minerals and ores that we use in trade. A nutrient cycle (or ecological recycling) is the movement and exchange of organic and inorganic matter back into the production of matter. Birds follow different migratory paths each year. (1 mark) a) Red. Phytoplankton are the foundation of the aquatic food web, the primary producers, feeding everything from microscopic, animal-like zooplankton to multi-ton whales.Small fish and invertebrates also graze on the plant-like organisms, and then those smaller animals are eaten by bigger ones. PCB was best studied in aquatic ecosystems where predatory fish species accumulated very high concentrations of the toxin that is otherwise exists at low concentrations in the environment. Question 5 of 50 2.0/ 2.0 Points d. The crust recycles the organic materials in sedimentary rock. Starlings producing fewer or more than this have reduced fitness. ... An ecologist is comparing two different ecosystems and creates the following list of similarities. Correct answer to the question Which statement best describes ecosystems? C. Ecosystems do not interact with each other. A. Based on their size. Which of the following best describes the effect of increasing global temperature on coral ecosystems? The increased Eutrophication is the best statement that describes the human influence on the biochemical cycles. THPT QG Môn Toán THPT QG Môn Tiếng Anh THPT QG Môn Lý THPT QG Môn Tiếng Anh THPT QG Môn Lý Decline in … It creates a habitat for some ocean animals. Consumers are organisms that cannot create their food. C) Nutrient cycles involve both abiotic and biotic components of ecosystems. E. No choice is correct. c. The passage of glaciers created new ecosystems. Which of the following statements . B)all species,population,and community interactions for organisms in a given area. ocean and lake. This terrestrial ecosystem has animals like black bear, deer, red fox, rabbit, and cardinal., This terrestrial ecosystem is dominated by plants., This terrestrial ecosystem has fertile soil and is covered with tall grasses., A scientist is studying a certain type of plant that requires a hot and humid climate and lots of rain in order to grow. A)decomposer B)producer C)consumer D)pathogen This ameba would most likely be classified as a A)All the energy is stored in a newly made structure. The climate type in much of California is described as Mediterranean climate, with winter rains and dry, hot summers. best. Climax Important!!!! Marine eutrophication has a negative impact on food security, ecosystem health and economy through disruptions in tourism, fisheries and health industries. Yet with the right strategy and approach, leaders can exploit new openings to go on offense, as well. Which of the following best describes the flow of energy in most terrestrial and near-surface marine ecosystems? An immense variety of species of microbes, plants, insects, amphibians, reptiles, birds, fish and mammals can be part of a wetland ecosystem. It has little genetic variation.B. Read aloud and write on the board the following quotes from the Ecosytem encyclopedic entry. Costa Rica is on the top 20 list of the most biodiverse countries in the world. C. answer choices . Which best describes possible interactions of elephants with the surrounding ecosystem? B) They consist of two or more distinct landscapes. Massive, multi-industry ecosystems are on the rise, and enormous amounts of value will be on the move. heterotrophs. Which BEST describes the role of an oak tree in its ecosystem? C. All the living organisms in an area and the abiotic factors. Agroecosystems are the most intensively managed, and thus often the most disturbed, of the earth’s ecosystems. Population ecology. Which of the following trends best describes radioactive decay? Ecological disturbance, an event or force, of nonbiological or biological origin, that brings about mortality to organisms and changes in their spatial patterning in the ecosystems they inhabit. 1. As all ecosystems require a method to recycle material from dead organisms, most grazing food webs have an associated detrital food web. THI THPTQG. Human beings disrupt the presence of animals in ecosystems. C. Ecosystems … User: Which of the following best describes the fate of energy in ecosystems? Flow of energy and matter through ecosystems. Energy flow is a unidirectional and noncyclic pathway, whereas the movement of mineral nutrients is cyclic. The living parts of an ecosystem are called biotic factors while the environmental factors that they interact with are called abiotic factors. Mangroves, seagrass beds, and coral reefs work as a … Nuclear power produces radiation, which is harmful if leaked. Many animals rely on estuaries for food, places to breed, and migration stopovers. Which of the following best describes the long-term impact of using a nonrenewable energy source. Wetlands are among the most productive ecosystems in the world, comparable to rain forests and coral reefs. A)populations + community. Disturbance plays a significant role in shaping the structure of individual populations and the Radiometric dating is based on the radioactive decay of a radio-isotope which describes its half life. levels, and marine ecosystems generally have no more than seven. Most nitrogen enters ecosystems by the microbial fixation of nitrogen gas (N2), but uptake of atmospheric NH3 may provide up to 10% of the plant community´s nitrogen requirements. Social studies. 3. In the trophic pyramid, how are organisms classified? Phytoplankton productivity is limited to the euphotic zone, the upper layer of the water column in which there is sufficient sunlight to support net productivity. Which of the following environments would you expect to have the most biodiversity? Which best describes how the fossil record supports the theory of evolution? Which of the following statements best describes the current state of research on personality types? D. water 9. Predators include owls, snakes, wild cats, crocodiles, and sharks. These groups should be central players in conservation policy, for obvious reasons: They know the local ecosystems best and have the greatest, and most direct, stakes in preserving them.
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