What is a keystone species? (a) A species which makes up only a small proportion of the total biomass of a community, yet has a huge impact on the community’s organization and survival. (b) A common species that has plenty of biomass, yet has a fairly low impact on the community’s organization. (c) A rare species that has minimal impact on the biomass and on other species in the community (d) A dominant species that constitutes a large. proportion of the biomass and which affects many other species.

What is a keystone species?
(a) A species which makes up only a small
proportion of the total biomass of a community,
yet has a huge impact on the community’s
organization and survival.
(b) A common species that has plenty of biomass,
yet has a fairly low impact on the community’s
organization.
(c) A rare species that has minimal impact on the
biomass and on other species in the community
(d) A dominant species that constitutes a large.
proportion of the biomass and which affects
many other species.
by

1 Answer

Answer :

(a) A species which makes up only a small
proportion of the total biomass of a community,
yet has a huge impact on the community’s
organization and survival.
by

Related questions

The species confined to a particular region and not found elsewhere is termed as (a) endemic (b) rare (c) keystone (d) alien.

Description : The species confined to a particular region and not found elsewhere is termed as (a) endemic (b) rare (c) keystone (d) alien.

Last Answer : (a) endemic

is called for an organism that helps to define an entire ecosystem. a) Super species c) Dominant species b) Keystone species d) Precious species

Description : is called for an organism that helps to define an entire ecosystem. a) Super species c) Dominant species b) Keystone species d) Precious species

Last Answer : Keystone species

Which of the following can be said as the “Theory of Darwin”? (a) Survival of the fittest and struggle for existence (b) Weak and strong always maintain a fixed proportion (c) different species do not arise by genetic mutaion (d) None of these

Description : Which of the following can be said as the “Theory of Darwin”? (a) Survival of the fittest and struggle for existence (b) Weak and strong always maintain a fixed proportion (c) different species do not arise by genetic mutaion (d) None of these

Last Answer : Ans:(a)

Drying oils contain a fairly large proportion of – (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Description : Drying oils contain a fairly large proportion of – (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Last Answer : (4) unsaturated fatty acids Explanation: They contain a high percentage of "polyunsaturates" (polyunsaturated fatty acids). Most drying oils owe their drying properties to the presence of a large percentage of linolenic acid (which derives its name from "linseed"), which is highly unsaturated.

Drying oils contain a fairly large proportion of (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Description : Drying oils contain a fairly large proportion of (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Last Answer : unsaturated fatty acids

Disaster management is aimed ata. Resettling people in the closest unaffected urban area b. Collection of valuable data for future management objectives c. Strengthening sewage and drinking water treatment facilities to resist the impact of a future disaster d. Restoring a communitys services, facilities and residences to pre-disaster levels

Description : Disaster management is aimed ata. Resettling people in the closest unaffected urban area a. Resettling people in the closest unaffected urban area b. Collection of valuable data for future ... a future disaster d. Restoring a communitys services, facilities and residences to pre-disaster levels

Last Answer : d. Restoring a communitys services, facilities and residences to pre-disaster levels

Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species? (a) Endemic (b) Vulnerable (c) Threatened (d) Keystone

Description : Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species? (a) Endemic (b) Vulnerable (c) Threatened (d) Keystone

Last Answer : (b) Vulnerable

What is a keystone species?

Description : What is a keystone species?

Last Answer : A keystone species is a species that has a disproportionately large impact on the structure and function of an ecosystem, and is an important concept in ecology and conservation.

What is a keystone species?

Description : What is a keystone species?

Last Answer : A keystone species is a species that has a disproportionately large impact on its ecosystem compared to its abundance, and is an important concept in ecology and environmental science.

What is a keystone species?

Description : What is a keystone species?

Last Answer : A keystone species is a species that has a disproportionately large impact on the ecosystem relative to its abundance, and is an important concept in ecology and conservation biology.

What is a keystone species?

Description : What is a keystone species?

Last Answer : A: A keystone species is a species that has a disproportionate impact on its ecosystem relative to its abundance, often playing a critical role in maintaining the health and stability of the ecosystem.

Are humans keystone species?

Description : Are humans keystone species?

Last Answer : I do not think that human beings are keystone species. Keystone species are species whose existence are critical to the survival of other species and the environment. Without the species, there ... in biological processes. For example animals also give off Co2 that plants use during photosynthesis.

Which of the following is a keystone species?

Description : Which of the following is a keystone species?

Last Answer : Which of the following is a keystone species? A. Fig B. Deer C. Mycorrhiza D. Pollinator

What effect does do keystone species have on an ecosystem?

Description : What effect does do keystone species have on an ecosystem?

Last Answer : Feel Free to Answer

Nikhil and Neha went to a remote village in Kerala to meet their grandmother. They were surprised to see a biogas plant in Mr. Nair’s house in the neighbourhood. There were plenty of livestocks and the household used cooking gas from the plant. Also their farms had rich vegetation. They contacted sarpanch of the village and convinced him to set up a biogas plant for village community. (a) Mention the values displayed by Mr. Nair, Nikhil and Neha. (b) Explain the possible arguments given by Nikhil and Neha to the sarpanch to convince him to set up community biogas plant. -Science

Description : Nikhil and Neha went to a remote village in Kerala to meet their grandmother. They were surprised to see a biogas plant in Mr. Nair's house in the neighbourhood. There were plenty of livestocks ... given by Nikhil and Neha to the sarpanch to convince him to set up community biogas plant. -Science

Last Answer : (a) Mr Nair: Higher degree of general awareness, helping nature. Nikhil and Neha: Knowledge sharing. helping nature. concern for community advantage. (b) Possible arguments given by Nikhil ... . Basically they discuss and explain the advantages of community bio gas plant for the'entire village.

Animals exhibiting external fertilisation produce a large number of gametes .Pick the appropriate reason for the following. a) the animals are small in size and want to produce more off springs b) food is available in plenty of water c) to ensure better chances of fertilisation d) water promotes production large number of gametes

Description : Animals exhibiting external fertilisation produce a large number of gametes .Pick the appropriate reason for the following. a) the animals are small in size and want to produce more off springs ... c) to ensure better chances of fertilisation d) water promotes production large number of gametes

Last Answer : c) to ensure better chances of fertilisation

how does biomass in a community change as succession proceeds -General Knowledge

Description : how does biomass in a community change as succession proceeds -General Knowledge

Last Answer : increases is the answer.

To gain market share Lada entered car markets with a comparatively low price. One of the negative side effects of taking this pricing position is A)a negative impact on consumers' perceptions of quality. B)competitors can match the price. C)a high return on investment levels affecting tax balances owed. D)poor survival chances in the market.

Description : To gain market share Lada entered car markets with a comparatively low price. One of the negative side effects of taking this pricing position is A)a negative impact on consumers' perceptions of ... high return on investment levels affecting tax balances owed. D)poor survival chances in the market.

Last Answer : A)a negative impact on consumers' perceptions of quality.

The most likely explanation why the auditor’s examination cannot reasonably be expected to bring all illegal acts by the client to the auditor’s attention is that a. Illegal acts are perpetrated by management override of internal control. b. Illegal acts by clients often relate to operating aspects rather than accounting aspects. c. The client’s internal control may be so strong that the auditor performs only minimal substantive testing. d. Illegal acts may be perpetrated by the only person in the client’s organization

Description : The most likely explanation why the auditor's examination cannot reasonably be expected to bring all illegal acts by the client to the auditor's attention is that a. Illegal acts are perpetrated by ... testing. d. Illegal acts may be perpetrated by the only person in the client's organization

Last Answer : Illegal acts by clients often relate to operating aspects rather than accounting aspects

Select the correct statement about biodiversity. (a) The desert areas of Rajasthan and Gujarat have a very high level of desert animal species as well as numerous rare animals. (b) Large scale planting of Bt cotton has no adverse effect on biodiversity. (c) Western ghats have a very high degree of species richness and endemism. (d) Conservation of biodiversity is just a fad pursued by the developed countries.

Description : Select the correct statement about biodiversity. (a) The desert areas of Rajasthan and Gujarat have a very high level of desert animal species as well as numerous rare animals. (b) Large scale ... and endemism. (d) Conservation of biodiversity is just a fad pursued by the developed countries.

Last Answer : (c) Western ghats have a very high degree of species richness and endemism.

I can't shrink my partition more than a few MB yet I have plenty of hardrive space(40 GB)e?

Description : I can't shrink my partition more than a few MB yet I have plenty of hardrive space(40 GB)e?

Last Answer : Why would you want to? Partitions just use up HD space, and don’t provide any benefit over what you can get with a directory. Most HD’s are preset with a minimum partition size, you are probably trying to go below the minimum.

There is plenty of rain in India during the rainy season, yet we need irrigation. -Geography

Description : There is plenty of rain in India during the rainy season, yet we need irrigation. -Geography

Last Answer : Variability in Rainfall: Rainfall in India is very uncertain, which increases the element of risk and makes crop production rather difficult. Unequal Distribution of Rainfall: In most parts of the ... of Punjab and Haryana are in the arid zone, where there is a constant deficiency of water.

I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole. What am I? -Riddles

Description : I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole. What am I? -Riddles

Last Answer : I'm a snake.

I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole, What am I? -Riddles

Description : I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole, What am I? -Riddles

Last Answer : A snake.

I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole.What am I? -Riddles

Description : I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole.What am I? -Riddles

Last Answer : I'm a snake.

Would I be violating your community's open container laws if I stopped to pick up a discarded **** can or vodka bottle while walking?

Description : Would I be violating your community's open container laws if I stopped to pick up a discarded beer can or vodka bottle while walking?

Last Answer : answer:If I am not mistaken, at least in my jurisdiction, the key point is not the container, but the alcohol itself. In other words, I can be arrested if I am carrying my vodka tonic in a ... be some risk. But a reasonable policeman would take that into account. And probably have you pour it out.

Haemophilia is more commonly seen in human males than in human females because (a) a greater proportion of girls die in infancy (b) this disease is due to a Y-linked recessive mutation (c) this disease is due to an X-linked recessive mutation (d) this disease is due to an X-linked dominant mutation.

Description : Haemophilia is more commonly seen in human males than in human females because (a) a greater proportion of girls die in infancy (b) this disease is due to a Y-linked recessive mutation (c) this ... to an X-linked recessive mutation (d) this disease is due to an X-linked dominant mutation.

Last Answer : this disease is due to an X-linked recessive mutation

As a general rule, isn't it true that, no matter what the INCOME demographics are, throughout the Western-culturally influenced world, large cities are fairly liberal / progressive, and small cities and towns tend to be more conservative?

Description : As a general rule, isn't it true that, no matter what the INCOME demographics are, throughout the Western-culturally influenced world, large cities are fairly liberal / progressive, and small cities and towns tend to be more conservative?

Last Answer : This is an unworkable over-generalization. Asian countries can be much more conservative in many social ideas in all demographic areas whether large cities or small towns and rural areas. The ... countryside. Scandinavian countries are also liberal across the board. It's best not to generalize.

How do the continuity and predictability of the annual ceremonies reinforce the community's values?

Description : How do the continuity and predictability of the annual ceremonies reinforce the community's values?

Last Answer : Everything is organized and controlled by the elders. So peopledon't have to think for themselves. Because they are told what todo and when to do it.

The nursing community’s interest in qualitative research began in; a. Late 1910’s b. Late 1930’s c. Late 1950’s d. Late 1970’s

Description : The nursing community’s interest in qualitative research began in; a. Late 1910’s b. Late 1930’s c. Late 1950’s d. Late 1970’s

Last Answer : d. Late 1970’s

What's your favorite way for saving electricity or gas with minimal impact on quality of life?

Description : What's your favorite way for saving electricity or gas with minimal impact on quality of life?

Last Answer : Laundry off-peak. I’m a big night owl so I’m always doing laundry over night… yes it’s loud but earplugs go a long way ;)

The impact of strategies on the general direction and basic character of a Company is ------ : A. Short range B. Medium range C. Long range D. Minimal

Description : The impact of strategies on the general direction and basic character of a Company is ------ : A. Short range B. Medium range C. Long range D. Minimal

Last Answer : Long range

Temper brittleness of a material can be fairly detected by the __________ test. (A) Fatigue (B) Notched bar impact (C) Tensile (D) Hardness

Description : Temper brittleness of a material can be fairly detected by the __________ test. (A) Fatigue (B) Notched bar impact (C) Tensile (D) Hardness

Last Answer : Option B

Which biomass has the highest species diversity

Description : Which biomass has the highest species diversity

Last Answer : Tropical rainforests

Biomagnification means increase in the (A) concentration of pollutants in living organisms (B) number of species (C) size of living organisms (D) biomass

Description : Biomagnification means increase in the (A) concentration of pollutants in living organisms (B) number of species (C) size of living organisms (D) biomass 

Last Answer : (A) concentration of pollutants in living organisms 

Which of the following is/are true? A. Because of its thickness, the tensile strength of a healing wound on the eyelid is much less than one on the thick skin of the back. B. By 2 days, the experimental burst strength of skin is minimal since collagen has been formed in the wound but has not yet cross-linked. C. Wound strength reaches a plateau by 3 weeks. D. Wounds rarely, if ever, regain the strength of intact tissues.

Description : Which of the following is/are true? A. Because of its thickness, the tensile strength of a healing wound on the eyelid is much less than one on the thick skin of the back. B. By 2 days, ... strength reaches a plateau by 3 weeks. D. Wounds rarely, if ever, regain the strength of intact tissues.

Last Answer : Answer: BD DISCUSSION: Tensile strength measures load per cross-section area at rupture, whereas burst strength measures load required to break a wound, regardless of dimension. Therefore, skin wounds have ... a slower rate for more than a year. Wounds do not regain the strength of normal tissue

Biomass energy is w) formed through photosynthesis x) caused by heat due to the large mass of the Earth y) has been used for only a few years z) the predominant source of commercial heat energy in the northern regions of the United States

Description : Biomass energy is w) formed through photosynthesis x) caused by heat due to the large mass of the Earth y) has been used for only a few years z) the predominant source of commercial heat energy in the northern regions of the United States

Last Answer : ANSWER: W -- FORMED THROUGH PHOTOSYNTHESIS

Biomass energy is: w) formed through photosynthesis x) caused by heat due to the large mass of the earth y) has been used for only a few years z) is effective in only certain regions of the United States

Description : Biomass energy is: w) formed through photosynthesis x) caused by heat due to the large mass of the earth y) has been used for only a few years z) is effective in only certain regions of the United States 

Last Answer : ANSWER: W -- FORMED THROUGH PHOTOSYNTHESIS 

In biotic community, the most imporatant factor for survival of an animal is

Description : In biotic community, the most imporatant factor for survival of an animal is

Last Answer : In biotic community, the most imporatant factor for survival of an animal is A. Day length B. Soil moisture C. Green food D. Predators

1/2 of our large daphne bush has dried up and died; the other half seems fairly normal but not robust. What's going on?

Description : 1/2 of our large daphne bush has dried up and died; the other half seems fairly normal but not robust. What's going on?

Last Answer : Need Answer

Silent Valley of Kerala – (1) is the only evergreen forest in India (2) contains costly timber trees (3) is a good picnic spot (4) contains rare species of plants and animals

Description : Silent Valley of Kerala – (1) is the only evergreen forest in India (2) contains costly timber trees (3) is a good picnic spot (4) contains rare species of plants and animals

Last Answer : (4) contains rare species of plants and animals Explanation: Silent Valley National Park, is located in the Nilgiri Hills, Palakkad District in Kerala. The park is one of the last undisturbed ... Save Silent Valley which resulted in cancellation of the project and creation of the park in 1980.

The reactions of high molecularity are rare, because (A) Of very large activation energy of many bodies (B) Of low probability of many body collisions (C) Many body collisions are not favoured energetically (D) Of requirement of very large concentration for such reactions

Description : The reactions of high molecularity are rare, because (A) Of very large activation energy of many bodies (B) Of low probability of many body collisions (C) Many body collisions are not favoured energetically (D) Of requirement of very large concentration for such reactions

Last Answer : (B) Of low probability of many body collisions

The 'Red Data Book' is the documentation of endangered rare species of: (1) Flora (2) Fauna (3) Other living organisms (4) All of these are correct

Description : The 'Red Data Book' is the documentation of endangered rare species of: (1) Flora (2) Fauna (3) Other living organisms (4) All of these are correct

Last Answer : (4) All of these are correct Explanation: A Red Data Book contains lists of species whose continued existence is threatened. Species are classified into different categories of perceived risk. It documents rare ... , plants and fungi, as well as other living organisms in an area, region or country.

The ‘Red Data Book’ is the documentation of endangered rare species of: (1) Flora (2) Fauna (3) Other living organisms (4) All of these are correct

Description : The ‘Red Data Book’ is the documentation of endangered rare species of: (1) Flora (2) Fauna (3) Other living organisms (4) All of these are correct

Last Answer : All of these are correct

The marketing concept is a way of thinking or a management philosophy that affects _____ 1. Only marketing activities 2. Most efforts of the organization 3. Mainly the efforts of sales personnel 4. Mainly customer relations 5. Only business organizations

Description : The marketing concept is a way of thinking or a management philosophy that affects _____ 1. Only marketing activities 2. Most efforts of the organization 3. Mainly the efforts of sales personnel 4. Mainly customer relations 5. Only business organizations

Last Answer : Most efforts of the organization

Which of the following is necessary for a natural monopoly? a. economies of scale b. a high proportion of the total cost is the cost of capital goods c. the market is very small d. all of the above

Description : Which of the following is necessary for a natural monopoly? a. economies of scale b. a high proportion of the total cost is the cost of capital goods c. the market is very small d. all of the above

Last Answer : d. all of the above

Assertion (A) : Majority community is dominant in a few democratic states. Reasoning (R) :  Dominance can undermine the unity of the country.

Description : Assertion (A) : Majority community is dominant in a few democratic states. Reasoning (R) :  Dominance can undermine the unity of the country.

Last Answer : Two statements are given below as Assertion (A) and Reasoning (R). Read the statement and choose the most ... (A) is false but Reasoning (R) is true.

Would it bother you if you were the parent of a Girl Scout, and they're encouraged to sell cookies, including standing out in the cold in front of stores, yet the leader of the GS organization makes almost half a million dollars a year?

Description : Would it bother you if you were the parent of a Girl Scout, and they're encouraged to sell cookies, including standing out in the cold in front of stores, yet the leader of the GS organization makes almost half a million dollars a year?

Last Answer : answer:Our daughter has been in Girl Scouts the past two years and she enjoys helping at the booths to sell cookies. We have had no pressure from the troop leader or other parents to reach certain quotas. The ... girls sell at have been indoors, so being out in the cold hasn't been a problem for us.

Why is evidence of a meteoroid impact rare on Earth, despite the fact they often pass into Earth’s atmosphere?

Description : Why is evidence of a meteoroid impact rare on Earth, despite the fact they often pass into Earth’s atmosphere?

Last Answer : When a meteorite hits Earth, the result is similar to a huge bomb exploding. Some of the material from the meteor turns to dust that goes high into the atmosphere where winds carry it over the entire surface of the Earth.

The people who adopt immediately after getting knowledge and constitutes only 2.5% of the total population.

Description : The people who adopt immediately after getting knowledge and constitutes only 2.5% of the total population.

Last Answer : Ans. Innovators