Which of these statements describes an accurate model for how carbon dioxide and oxygen levels change within the ocean over time? Choose two answers that apply. A) eutrophication of the ocean leads to an increase in dissolved oxygen. B) photosynthesis by the phytoplankton increase the oxygen concentration of the ocean. C) decomposition of dead organic matter decreases the oxygen concentration in the ocean. D) cellular respiration by primary consumers increases the oxygen concentration in the ocean E) anaerobic respiration at the ocean floor decreases the carbon dioxide levels in the ocean

Q: Under what conditions would you expect the lowest NPP in a terrestrial ecosystem?   a)Cool…

A: In a terrestrial ecosystem, both temperature and precipitatiin positively affect the net primary…

Q: Gasping for Oxygen Explain how each of the following contribute to dissolved oxygen decline in…

A: Various factors are responsible for dissolved oxygen decline in aquatic ecosystems :-

Q: It must have organisms that carry out autotrophic nutrition. It must have producers and consumers…

A: The ecosystem is made up of a biological community that exists in a region along with physical and…

Q: In the food web the amount of matter A) remains constant. B) remains unstable. is all converted to…

A: A food web is basically a collection of food chains that are interlinked with one another. The…

Q: 1) A blocked-off meander 2) The shape of a stream that is being actively eroded 3) A triangular…

A: Groundwater is the major source of freshwater. Freshwater is also available from resources such as…

Q: The tiger beetle Cicindela oregona  has a distribution that extends from Arizona through the…

A: Temperate rainforests are defined as the coniferous or broadleaf forests that will occur in the…

Q: The key source of food for organisms living on the abyssal plain is.. O a) Descending photosynthetic…

A: Any community of organisms in the deep sea that share a common environment is referred to as a deep…

Q: Design an experiment to solve the following problem:Determine the rate of methanogenesis (CO2 + 4H2…

A: Methanogenesis is process of methane formation by methanogens (microorganisms can produce methane).…

Q: A researcher measures the amount of mercury (a persistant toxic chemical) in the fish of a lake…

A: On the surface of the Earth, fresh water is a valuable resource. It also supports a wide range of…

Q: ) What is the independent variable? What is the dependent variable? B)In what type of environment…

A: The variable that is changed during a scientific experiment is known as the independent variable.…

Q: Which of these fish populations will most likely decrease if people keep cutting down the trees near…

A: When looking for food, carp frequently cruise the coastal boundary. In morning and late in the day,…

Q: Which region emitted the greatest amount of total mercury? A.)Asia B.)South and Central America…

A: Mercury is a heavy metal that causes several adverse effects on the health of living organisms. It…

Q: The energy flow in the ecosystem is important to maintain an ecological balance. In this context,…

A: The ecosystem is composed of living as well as nonliving components and it is very important to…

Q: List two ways in which you could apply these concepts : (a) “as energy flows through ecosystems in…

A: According to the first law of thermodynamics, i.e. the law of energy conservation, energy can be…

Q: ###2####2#####Which type of marine ecosystem is characterized by shallow, brackish water where…

A: The question is asking us to identify the type of marine ecosystem that is characterized by shallow,…

Q: List three ways that organisms serve as important means of chemical transport within or between…

A: Transportation is a phenomenon that takes place in all higher organisms. Chemical transport…

Q: Illustrate and explain the following using a diagram: 1. Three ways that carbon can enter the ocean…

A: Cabon is a chemical element placed in position 6 in the periodic table, its atomic number is 6 and…

Q: If no photosynthesis or biological pump operated in the ocean, what would likely happen to the…

A: The carbon cycle explains how carbon travels through the biosphere, hydrosphere, atmosphere, and…

Q: .List three “special” characteristics of water that influence living organisms.  Then for one of…

A: Living organisms need water to survive. Water also helps many organisms regulate metabolism and…

Q: Which two gases absorbed by the oceans are the most important? O carbon dioxide & methane O carbon…

A: Different gases are present within the atmospheric air in different proportions. The ocean (and also…

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: Climate change would encompass which of the following? a) A dry summer within the Amazon rainforest…

A: The long term changes in temparature and weather patterns in environment is known as climate change.…

Q: The main cause of the increase in the amount of CO2 in Earth’satmosphere over the past 150 years…

A: The atmosphere of Earth is protecting the living things from the harmful ultraviolet radiation of…

Q: After feeding at the surface of the ocean during the day, many ocean organisms migrate to deeper…

A: Correct answer is B

Environmental effects

Environmental effect is the beneficial or adverse impact of human products, services, or activities on the environment. For example, the release of volatile organic compounds negatively affects the environment and causes smog formation. On the other hand, collecting litter and putting it in bins positively affects the environment.