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
Vinil7 [7]
3 years ago
9

Im which solution might a cell maintain homeostasis through diffusion

Biology
1 answer:
slavikrds [6]3 years ago
8 0
Cell maintain homeostasis through diffusion in isotonic solution. Isotonic means that the concentrations are the same on either side of the membrane, maintaining homeostasis.
You might be interested in
Explain the term niche
Wewaii [24]

Answer:

a shallow recess, especially one in a wall to display a statue or other ornament.

3 0
3 years ago
A poisonous substance enters the food chain through the soul. This substance doesn't break down in the bodies of living organism
Alecsey [184]

Explanation:

Biomagnification, also known as bioamplification or biological magnification, is any concentration of a toxin, such as pesticides, in the tissues of tolerant organisms at successively higher levels in a food chain.[1] This increase can occur as a result of:

Persistence – where the substance cannot be broken down by environmental processes

Food chain energetics – where the substance's concentration increases progressively as it moves up a food chain

Low or non-existent rate of internal degradation or excretion of the substance – mainly due to water-insolubility

In biomagnification the concentration of the persistent toxins (crosses) increases higher up the food chain.

In this scenario, a pond has been intoxicated. As we go further into the food chain, the toxin concentration increases, causing the top consumer to eventually die of intoxication.

Biomagnification is the build up of toxins in a food chain. The DDT concentration is in parts per million. As the trophic level increases in a food chain, the amount of toxic build up increases. The x's represent the amount of toxic build up accumulating as the trophic level increases. Toxins build up in organism's fat and tissue. Predators accumulate higher toxins than prey.

Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals work their way into lakes, rivers and the ocean, and then move up the food chain in progressively greater concentrations as they are incorporated into the diet of aquatic organisms such as zooplankton, which in turn are eaten perhaps by fish, which then may be eaten by bigger fish, large birds, animals, or humans. The substances become increasingly concentrated in tissues or internal organs as they move up the chain. Bioaccumulants are substances that increase in concentration in living organisms as they take in contaminated air, water, or food because the substances are very slowly metabolized or excreted.

Contents

Processes Edit

Although sometimes used interchangeably with "bioaccumulation", an important distinction is drawn between the two, and with bioconcentration.

Bioaccumulation occurs within a trophic level, and is the increase in the concentration of a substance in certain tissues of organisms' bodies due to absorption from food and the environment.

Bioconcentration is defined as occurring when uptake from the water is greater than excretion.[2]

Thus, bioconcentration and bioaccumulation occur within an organism, and biomagnification occurs across trophic (food chain) levels.

Biodilution is also a process that occurs to all trophic levels in an aquatic environment; it is the opposite of biomagnification, thus when a pollutant gets smaller in concentration as it progresses up a food web.

Lipid, (lipophilic) or fat soluble substances cannot be diluted, broken down, or excreted in urine, a water-based medium, and so accumulate in fatty tissues of an organism, if the organism lacks enzymes to degrade them. When eaten by another organism, fats are absorbed in the gut, carrying the substance, which then accumulates in the fats of the predator. Since at each level of the food chain there is a lot of energy loss, a predator must consume many prey, including all of their lipophilic substances.

For example, though mercury is only present in small amounts in seawater, it is absorbed by algae (generally as methylmercury). Methyl-mercury is the most harmful variation of mercury. It is efficiently absorbed, but only very slowly excreted by organisms.[3] Bioaccumulation and bioconcentration result in buildup in the adipose tissue of successive trophic levels: zooplankton, small nekton, larger fish, etc. Anything which eats these fish also consumes the higher level of mercury the fish have accumulated. This process explains why predatory fish such as swordfish and sharks or birds like osprey and eagles have higher concentrations of mercury in their tissue than could be accounted for by direct exposure alone. For example, herring contains mercury at approximately 0.01 parts per million (ppm) and shark contains mercury at greater than 1 ppm.[4]

DDT is thought to biomagnify and biomagnification is one of the most significant reasons it was deemed harmful to the environment by the EPA and other organizations. DDT is stored in the fat of animals and takes many years to break down, and as the fat is consumed by predators, the amounts of DDT biomagnify. DDT is now a banned substance in many parts of the world.[5]

7 0
2 years ago
If all the light waves are absorbed by an object then the object will appear
Aneli [31]
Yes this is true sort of like when light rays pass through water particles in the atmosphere and create a rainbow :)
4 0
3 years ago
Read 2 more answers
Having freckles is a dominant trait, and not having freckles is a recessive trait. Which set of parents will not have any childr
lys-0071 [83]

Answer:

d

Explanation:

I have the answer I learn about it

4 0
2 years ago
29. Element X has five valence electrons, element Y has one valence electron, and element Z has one valence electron. Which two
miskamm [114]

Answer:

element Y and Z

Explanation:

Having on valence electron indicates that these elements are on the same column/group of the periodic table. Both these elements will bond with a -1 charge.

3 0
3 years ago
Read 2 more answers
Other questions:
  • The main source of energy used by most organisms is _________
    13·1 answer
  • If uric acid accumulates in joints of humans the condition is referred to as
    10·1 answer
  • HELLLLLP!!!!!!! WILL GIVE BRAINLIEST!!!!
    14·2 answers
  • The Calvin cycle of photosynthesis begins when A. carbon dioxide is attached to RuBP. B. the reduction of carbon dioxide occurs.
    7·2 answers
  • How thin is earths crust
    9·2 answers
  • A typical human cell expresses only about 5% of its genes at any time. The expression of a gene can be regulated during any step
    13·1 answer
  • All nutrients in biological systems are _________
    9·1 answer
  • Endocrine disruptors should constantly be monitored because they mimic hormones and disrupt tissue or organ function. True False
    6·2 answers
  • Which statements always apply to the process of diffusion? Check all that apply.
    12·2 answers
  • Consider the following statements. Which of these statements is the hypothesis?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!