answer.
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
laila [671]
2 years ago
8

Using a flowchart, describe why the concentration of DDT in ring seals is much higher than the concentration in the arctic cod?

Biology
2 answers:
Makovka662 [10]2 years ago
4 0

Answer:

The concentration of DDT in-ring seals is higher than the concentration in the arctic cod because the concentration of DDT increases in the higher food chain due to biomagnification.

When organisms at lower food chain bioaccumulate chemicals like DDT get eaten by organisms at higher food chain then the concentration of DDT increases called biomagnification.

Arctic cod are the small fish which eats small copepods, then arctic cod is eaten by big fish and then these big fishes are eaten by ring seals. Therefore ring seals have a higher concentration of DDT than arctic cods.

Flow chart of biomagnification :

Tiny algae→copepod→arctic cod→bigger char fish→ring seals

frosja888 [35]2 years ago
3 0

as we go higher in the food chain, the accumulation of pesticides increases, because ring seals are in higher rank than the Arctic cod, that's why there is much higher concentration of DDT is present in ring seals.

You might be interested in
Alice and Julio’s company makes protective coverings for off-roading vehicles. Alice’s job involves harvesting a natural polymer
Fudgin [204]
<h2>Material Do Alice and Julio Likely Work - Option B</h2>

Alice and Julio’s company makes protective coverings for off-roading vehicles. Alice’s job involves harvesting a natural polymer from trees. Julio’s job is to take that material and change it chemically to create a synthetic polymer.

Alice and Julio most likely work with natural rubber and vulcanized rubber. Alice works with natural rubber, and Julio works with vulcanized rubber.

4 0
2 years ago
Read 2 more answers
On a global scale, energy _____ ecosystems whereas chemical elements _____ ecosystems. see concept 55.1 (page 1237) on a global
Kay [80]
<span>The choices for this question are:
</span>-is biologically magnified in ... are recycled in
-is dissipated in ... flow through
-flows through ... are recycled in
-is continuously supplied to ... are continuously removed from
<span>-is recycled in ... flow through</span><span>

On a global scale, energy flows through ecosystems whereas chemical elements are recycle in ecosystems. So the answer is the third option. 

Energy flows through the ecosystem. Most energy comes from sunlight and it is transformed into chemical energy by autotrophs. When they are consumed by heterotrophs the energy is passed on, until it dissipates as heat.  
</span><span>
Chemical elements like carbon and nitrogen, on the other hand, are cycled between biotic and abiotic factors in an ecosystem. This is not possible for energy. These chemical elements come from abiotic factors like the air, light and soil. They are incorporated in the biomass of the photosynthetic organisms and are consumed by other organisms. They are changed back into their inorganic form when the organism dies and are broken down by decomposers and the cycle goes on. So they are constantly being recycled. 

In summary, energy needs a continuous source to be able to maintain and sustain the energy flow in the ecosystem. Chemical elements, on the other hand, are just recycled through processes between abiotic factors and biotic factors. </span>
8 0
2 years ago
The rate of O2 production by the light reactions varies with the intensity of light because light is required as the energy sour
kupik [55]

Answer:

The correct answer is option a.

Explanation:

Yes, the light reactions also depend upon the Calvin cycle. Calvin cycle refers to a phenomenon that is used by the plants and algae to convert carbon dioxide from the atmosphere into sugar, the food needed by the autotrophs in order to grow. The plants rely upon the Calvin cycle for food and energy.  

In the given case, the rate of oxygen production would get diminish as the rate of ATP and NADP+ generated by the Calvin cycle diminishes. Of all the outcomes of the Calvin cycle, ADP and NADP+ are the only ones that get utilized by light reactions.  

The ADP and NADP+ are used up by the light reactions to fuel their reactions. This illustrates that if the rate of ADP and NADP+ generated by the Calvin cycle diminishes the production of oxygen by the light reactions also diminishes.  

5 0
2 years ago
NEEED HELP ASAP ))) Why was the reduction of the bison population to under 1,000 individuals a bottleneck event for the species?
forsale [732]

Answer:

its A

Explanation:

I took the test earlier

3 0
2 years ago
Classify each item as being associated with light positioning (controlling how and where light strikes the retina) or sensory pr
ale4655 [162]
Light positioning include;
1. Extrinsic muscles.
2. Pupil.
3. Accommodation.
4. Cornea
5. Ciliar bodies.

Sensory processing include;
1.Photoreceptor.
2. Occipital cortex.
3. Bipolar cells.
4. Ganglion cells.
5. Amacrine cells.

7 0
2 years ago
Other questions:
  • Organizing rocks according to their similarities is an example of the process of
    14·1 answer
  • What is one element a topographic map shows? 1.Elevation 2.Space 3.Temperature 4.Weather
    15·2 answers
  • At body temperature, which of these combinations is most likely to result in the digestion of proteins?
    5·1 answer
  • Consider classes A, B and C, where A is an abstract superclass, B is a concrete class that inherits from A and C is a concrete c
    8·1 answer
  • A researcher incubates a cell with radiolabeled amino acids. These amino acids are incorporated into the proteins as they are sy
    8·2 answers
  • Ram is a farmer who wants to grow tomatoes on his field. Give him four suggestions so that he can grow a healthy crop .You can t
    6·1 answer
  • Based on morphological and molecular data, researchers hypothesize that the split between dugongs and proboscideans likely occur
    10·1 answer
  • Which of the following statements concerning ribosomes is true?
    13·1 answer
  • Organisms that live in freshwater and marine biomes have developed unique adaptations that aid in their survival. Which of the f
    6·1 answer
  • The 'genus species' name for the common house cat is Felis domesticus, and the genus species name for a mountain lion is Felis c
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!