Keystone SpeciesA keystone species is one whose presence contributes to the diversity of life and whose
extinction would lead to the extinction of other forms of life. A keystone species helps to
support the ecosystem of which it is a part.
An example of what can happen when a keystone species is removed occurred when fur
hunters eliminated sea otters from some Pacific Ocean kelp beds. Otters eat sea urchins,
which eat kelp. With its major predator gone, sea urchin populations exploded and
consumed most of the kelp. Fish, snails, and other animals associated with the kelp beds
disappeared.
The grizzly bear is another example of a keystone species. Grizzlies transfer nutrients
from the ocean ecosystem to the forest ecosystem. The first stage of this transfer is
performed by salmon that swim up rivers, sometimes for hundreds of miles. Salmon are rich
in nitrogen, sulfur, carbon, and phosphorus. The bears capture the salmon and carry them
onto dry land, scattering nutrient-rich feces (wastes) and partially eaten salmon carcasses.
It has been estimated that the bears leave up to half of the salmon they harvest on the
forest floor.
One action humans can take that might ensure that these sea otters will continue their function as
a keystone species in their environment is to
(1) establish a sea otter wildlife refuge in the Atlantic Ocean
(2) pass laws to regulate the hunting of sea otters
(3) plant kelp in the Pacific Ocean
(4) destroy sea urchins found living in the kelp beds

Answers

Answer 1
Answer: One action humans can take that might ensure that these sea otters will continue their function asa keystone species in their environment is to (2) pass laws to regulate the hunting of sea otters.
Answer 2
Answer:

Final answer:

To ensure sea otters, a keystone species, continue their ecological function, humans should pass laws to regulate their hunting. This action addresses the root problem, stabilizes the otter population, and in turn, maintains the kelp ecosystems.

Explanation:

The action humans can take to ensure that sea otters continue their function as a keystone species in their environment would be to pass laws to regulate the hunting of sea otters. This action addresses the issue at its root cause, which is the overhunting of sea otters, leading to their decline. By regulating hunting, the population of sea otters can be stabilized, which in turn will keep the sea urchin populations in check, and thereby maintaining the kelp ecosystems.

While establishing a refuge in the Atlantic Ocean and planting more kelp may help in some ways, they do not address the root problem. Moreover, destroying sea urchins involves negatively affecting another species, which is not a sustainable or ethical solution.

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Related Questions

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Vegetable farmers often plant soybeans every few years. Rotating crops breaks up the life cycles of many insect pests, and the soybean plants provide the soil with nitrogen. Other crop plants need the nitrogen to grow well. A field of soybean seeds has been planted on a farm in Indiana. As soon as the first leaves emerge from the seed, photosynthesis begins. Which substance is the chemical food source for the soybean plants? A. sunlight B. Glucose C. Carbon Dioxide D. Water

Why is a controlled experiment important

Answers

A controlled experiment is crucial for isolating the effects of a single variable, making it easier to interpret the results.

importance of controlled experiment

All variables save the one being researched (the independent variable) are held constant in a controlled experiment. This enables researchers to draw more precise conclusions regarding the link between independent and dependent variables.

It would be difficult to identify whether the outcomes were attributable to the variable being examined or some other factor without control groups and uniform circumstances. Controlled experiments improve the reliability and validity of data obtained, laying the groundwork for scientific ideas and applications.

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How do bacteria that live deep below the ocean’s surface make food?a. by cellular respiration
b. by chemosynthesis
c. by photosynthesis
d. They eat other organisms.

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option-(b)-chemosynthesis
B- making food with chemical!

Cellular respiration occurs within the _________ of a cell.nucleus

vacuoles

cytoplasm

mitochondrion

Answers

Cellular respiration has been defined as the process of gaining energy by the cell with the use of Oxygen.

Site for cellular respiration

  • Cellular respiration has been utilizing oxygen for the breakdown of complex substances into simpler compounds.

  • There has been a release of energy in the form of ATP, NAD, and FADH that has been utilized by the cell.

  • The site for the cellular respiration in the cell has been Mitochondria. It has been used for the determination of cell cycles that has been operated on and result in the cell.

Thus, the site for cellularrespiration in the cell has been mitochondria. Thus, option D is correct.

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The answer would be the Mitochondrion! You may have heard it before, as it is the power house of the cell. This is where cellular respiration and energy production take place.

As water cycles through an ecosystem which process returns it to the atmosphere

Answers

Answer:

i know this! its evaporation.

Explanation:

Answer:

evaporation

it is a way that uses heat to create vapor in the atmosphere

Which structures are found in the human female reproductive system?

Answers

Answer:

The answer is A ovaries and uterus

Explanation:

Which vitamin requires intrinsic factor in order to be absorbed?A. B12
B. K
C. A
D. C

Answers

Final answer:

Vitamin B12 requires an intrinsic factor for absorption. The intrinsic factor is a protein produced in the stomach which aids in the absorption of Vitamin B12 in the small intestine. Lack of intrinsic factor can lead to vitamin B12 deficiency.

Explanation:

The vitamin that requires intrinsic factor in order to be absorbed is Vitamin B12. The intrinsic factor is a protein produced by the stomach that is necessary for the absorption of Vitamin B12 in the small intestine. Without the presence of intrinsic factor, Vitamin B12 cannot be effectively absorbed, leading to a potential vitamin B12 deficiency.

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Final answer:

Vitamin B12 requires intrinsic factor for absorption.

Explanation:

The vitamin that requires intrinsic factor in order to be absorbed is B12. Intrinsic factor is a protein that is produced by the stomach and is necessary for the absorption of vitamin B12 in the small intestine. Without intrinsic factor, the body cannot effectively absorb vitamin B12, leading to a deficiency.

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