1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
igor_vitrenko [27]
3 years ago
9

The following is one of the food chains within the Alaskan coast. The sea otter feeds on the sea urchins and the sea urchins fee

ds on the kelp (sea weed). It has been observed that the population of the sea otter is decreasing while the population of sea urchins is exploding. Consequently, the sea urchins have almost depleted the kelp. Which of the three species can be regarded as a keystone species/predator?
Biology
1 answer:
Gala2k [10]3 years ago
7 0

Answer:

The correct answer is sea otter.

Explanation:

A keystone species is that species that have a major impact on its ecosystem relative to its number. A keystone species stabilize an ecosystem by controlling the population of other species.

For example, sea otter is a keystone species that feeds on sea urchin and control its population. As the sea urchin population is under control seaweed population is also stable because sea urchin feeds on seaweeds.

As the population of sea otter declines the population of sea urchin increases because of having fewer predators and then this overpopulation of urchin depletes all the kelp by feeding on them.  

Therefore the right answer is- sea otter is the keystone species.

You might be interested in
. If it is June or July and you live in the southern hemisphere, describe the position of the Earth, in relation to the Sun, and
irga5000 [103]
It would be their equivalent of winter. The lower half of the Earth would be tilted away from the sun, and so it would be colder
6 0
3 years ago
Mature eggs first begin to be released from the ovaries of human females a short time after the onset of
raketka [301]
A short period of time, after the onset of puberty. The first mature eggs starts to be released from the ovaries during menstruation. Menstruation may first occur during the start of puberty in women, it may start as early as 8 years old and can start late as 16 years old. Menstruation is the process wherein not fertilized eggs are being broken down and released from the body.
7 0
3 years ago
Which signs would the nurse observe in a patient with alzheimer disease? select all that apply?
VikaD [51]
<span>Since you are missing the options, I'm going to enumerate some possible answers:
- </span><span>memory loss
</span><span>- Wandering
</span><span>- Unpredictable behavior
</span><span>- inability to process visual sensory information
</span><span>- less concentration and attention
- Delusions and hallucinations
- Dysphasia
- Apraxia (can't make certain motor movements)
- loss of </span><span><span>Orientation</span>
- loss of language
</span>





6 0
3 years ago
Which statement describes the structure of DNA?
skad [1K]
Hey,

option (C) is right ...

4 0
3 years ago
Develop an argument from evidence on how human activity can lead to ocean acidification? Further explain what we can do, as huma
Sedaia [141]

Answer

Ocean acidification results from the solubility of CO2 in oceans increasing the H+ concentrations, and depletion of bicarbonates concentrations.

Therefore, human activities which increases the concentration of CO2 in the atmosphere, will raise the atmospheric  CO2 concentration. CO2 is constantly being absorbed by green plants maintaining   its concentration through carbon cycle,Therefore massive deforestation  which removes green plants, cutting  down photosynthesis is one of human activities which  raises CO2 levels of the atmosphere.The CO2 dissolves in  the oceans to raise its acidic levels.Lower pH.

Another source is fossil fuels emissions which add more CO2 to the atmosphere.

Explanation:

7 0
3 years ago
Other questions:
  • Where does the exchange of substances between the blood and cells of the body take place?
    6·2 answers
  • Which of the following best represents the relationship of the concentration of hydrogen ions between water, vinegar, and ammoni
    5·2 answers
  • The type of insects and the stage of the insect’s life can give some indication on how long a body has been dead. True False
    7·2 answers
  • Explain why globin alone or heme alone is not effective as an oxygen carrier.
    13·1 answer
  • QUESTION 18
    8·2 answers
  • During his lifetime A Redwood will become larger and more complex. It could be Alive because it displays which sign of life
    12·1 answer
  • I did not mean to make this
    9·2 answers
  • Explain how a population of insects could become resistant to a pesticide.
    9·2 answers
  • What differentiates the inflammatory response and immune response?
    9·2 answers
  • Which of the following is a response to smelling food?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!