Chemoautotrophic bacteria and archaea are the main primary producers for food webs______ . a. in mangrove wetlands c. on coral reefs b. at seamounts d. at hydrothermal vents

Q: Which of the following is True about ocean ecosystems?a. Surface waters typically have abundant…

A: An ecosystem is an area where organisms, such as plants, animals,etc along with their weather work…

Q: Thermal stratification in a lake a. is not modified by fall and spring overturn. b. leads to…

A: Thermal stratification in a lake is the formation of two different layers on the basis of…

Q: The deep scattering layer is created by which of these: a) seasonal changes in the thermocline b)…

A: Phytoplanktons are marine algae that are able to synthesize their own food due to presence of…

Q: The effect of CO2 emissions from burning fossil fuels is likely to bea. nothing; photosynthesis by…

A: Fossil fuel is a natural fuel like coal or gas produced in the geological past from the sediments or…

Q: The floating assemblage of microbes and animals that drifts on ornear the surface of large bodies of…

A: Biological community is an interacting group of various species, which are located in a common…

Q: Which of the following serves as evidence of water pollution?   a an abundance of water plants in…

A: The addition of some Chemicals or contaminants in the freshwater is called the water pollution.…

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: A. Primary

A: The life on the earth exist with help of energy which is transferred into a food chain or food web…

Q: (D) cold winter months4. The oceans affect the biosphere in all of the following waysexcept(A)…

A: Oceans are large marine aquatic bodies which plays major roles. The earth biosphere composed of all…

Q: The balance of the coral reef ecosystem is being affected by warming oceans, changing ocean…

A: Answer: Introduction: Climate change can affect coral reef ecosystems by various incidences like sea…

Q: Which of the following most contributes to global warming? O A. The condensing of sulfuric acid into…

A: The increase in the heat of the Earth's atmosphere and climate change is called global warming. It…

Q: Young lakes are often clear and with little plant life. Such lakes arecalleda. oligotrophic.b.…

A: The lakes have a very less amount of nutrients and dissolved oxygen in it, hence these lakes will…

Q: The greastes effect that hmans have on the carbon cycle derives from A) the production of methane…

A: There are resources in nature that occur without any interference or action of humankind, such…

Q: Rat Rattle snake Tomato plant a. Classify cach organism in the diagram on basis of its role for…

A: Since there are multiple questions in this particular question, I'll answer the first three subparts…

Q: Almost all of the oxygen gas in today’s atmosphere ispresent as a result ofa. outgassing from…

A: The Atmosphere of planet Earth is majorly comprised of nitrogen and oxygen, which account for 99% of…

Q: What are the consequences of having an excess of nutrientssuch as nitrates and phosphates running…

A: Eutrophication is a well known process in the environment

Q: The preservation of ecosystems indirectly provides fresh water becausea. trees produce water as a…

A: Ecology is the branch of science that deals with the interaction of organisms and also with the…

Q: Marine animals and algae that live in the high intertidal zone of rocky shores are most frequently…

A:

Q: 1 12 Which is not a cause of global warming? b) Sea level rise a) Forestation 25540LED c)…

A: Global warming is caused by -  Greenhouse gases Variation in solar activity Heat trapping gases…

Q: Eutrophication isa. caused by an overabundance of nitrogen, which leads to an increasein bacteria…

A: Water pollution is defined as an undesirable substances in water that can affect the growth of other…

Q: Lakes and ponds that exhibit high levels of eutrophication typically are affected by too much A.…

A: Eutrophication is the process of enrichment of nutrients in lakes and ponds resulting in excess…

Q: Earth’s largest carbon reservoir is______ . a. the atmosphere c. seawater b. sediments and rocks d.…

A: Answer is b.) sediments and rocks.

Q: 1a.)Which of the following best describes an aquifer?   a.Water that flows over soil into streams…

A: BASIC INFORMATION  WATER It is a made up of oxygen and hydrogen where one water molecule has two…

Q: Greenhouse gases_____ . a. slow the escape of heat energy from Earth into space b. are produced by…

A: The greenhouse effect can be defined as the process in which there is the heating of the surface of…

Q: Which of the following could be an effect of an excess ofsewage running into a freshwater…

A: Due to the contamination of fresh water by sewage all of the above can takes place.

Q: a. Is the greenhouse effect harmful under ordinary circumstances?b. List the primary greenhouse…

A: Ecology is the branch of science that deals with the study of the environment and the interaction of…

Q: When biological oxygen demand (BOD) becomes very high:(a) The amount of dissolved oxygen…

A: Environment refers to the sum of all living and non-living organisms or elements that is present in…

Q: Increased average water temperature in Lake Erie as a result ofclimate change would most likely have…

A: Climate change is affecting the Earth's lakes at large scale. An increase in the air temperature is…

Q: Biomagnification is the process by which the level of contaminants increase as they move upwards in…

A: Biomagnification is a process in which toxic substances built-up or magnify successive trophic…

Q: When climbing a mountain, we can observe transitions inbiological communities that are analogous to…

A: The latitude determines the biodiversity of a particular area. From the pole to the equator, the…

Q: Which of the following natural forces is responsible for the release of carbon dioxide and other…

A: Carbon dioxide is an essential gas in our atmosphere which constitutes of about 0.3 % responsible…

Q: If you applied a fungicide to a cornfield, what would you expectto happen to the rate of…

A: Fungicides are the substances which kill fungus.

Q: tend to occupy the base of food webs. a. mediatrophs O b. trophytrophs С. heterotrophs O d.…

A: Option D i.e. autotrophs are the base of food web.

Q: A salmon feeds on crabs and small fishes, which in turn feed on zooplankton that feed on…

A: Overfishing is a process of  catching too many fish at once, so the breeding population becomes too…

Q: The biological pump in the ocean O A) is independent of the atmosphere. O B) moves carbon to deeper…

A: Phytoplankton are microscopic plants that live at the surface of the ocean. They play an important…

Q: you observe that coastal marshes are increasingly becoming flooded and that nearby coral reefs are…

A: Introduction :- Salt marshes are important parts of the aquatic food web, but they can also protect…

Q: Inaquatic ecosystems, the major agents of decomposition are:a.aquatic…

A: Answer: Introduction: The habitat of living organism present with each other underwater body is…

Q: Describe the roles of microbes in: a. The formation of root nodules and The Rhizosphere c. The…

A: A. Formation of root nodules- Bacteria invade the roots of leguminous plants, causing them to…

Q: The Hubbard Brook watershed deforestation experimentyielded all of the following results except…

A: Deforestation means cutting a large area of trees and convert into the non-forest area. Mostly…

Q: The movement of water between the Earth's surface and atmosphere is the  a. cycle of day and night…

A: There is a continuous movement of water between the earth and the atmosphere. Water, when gets…

Q: Humans have been using oil, mined from the earth, for the last 150 years to power our homes, cars,…

A: What factors contribute to the depletion of our natural resources: Overcrowding,  Waste and…

Q: 3. _______________ soils have very low bulk density compared with mineral soils. a. Organic c.…

A: Soil is the upper layer of the earth crust.

Q: Which of the following would represent an ecosystem? a. A lake b. A fish tank c. A prairie d.…

A: An ecosystem is a geographical region in which plants, animals, and other creatures, as well as…

Q: Which of the following would not be included in a description of an organism’s niche? a. its…

A: G. Evelyn Hutchinson, a biologist, introduced the niche concept in 1957.

Q: Which among A-D is not a step in the eutrophication process? A) O rapid growth of algae and…

A: Eutrophication is a process by which a water body is excessively enriched by nutrients particularly…

Microbes

Microbes are microscopic living organisms that can only be detected with the help of specialized laboratory equipment called a microscope. These living organisms are so small that they are not visible to the naked eye.