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
ASHA 777 [7]
2 years ago
12

How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater

Biology
1 answer:
Sveta_85 [38]2 years ago
8 0

Answer: Contractile vacuole of amoeba will shrink/contract when the organism is placed in sea water.

Contractile vacuole is a subcellular structure ( mainly found in protists) that is involved in the regulation of water quantity inside a cell.

As we know that water always flow from a hypotonic ( where solute concentration is less) to a hypertonic ( where solute concentration is more) solution. Sea water is a hypertonic solution as the concentration of salt is very high. Therefore, in this case, water will flow from contractile vacuole to outside of the organism.

Thus, contractile vacuole of amoeba will contract as it will lose water when placed in sea water.

You might be interested in
Human caused reductions of biodiversity, include pollution, invasive species, and overexploitation.
Andrew [12]

Answer:

True

Explanation:

Development, together with globalization, drove severe changes at a global level. The natural and original environments suffered from these effects and still are.

Human beings have constantly been altering the natural ecosystems and causing irreparable damages to nature. For many decades, development involved society and technology advance over new areas unpopulated by humans.

<u>Some</u> of the principal human activities responsible for biodiversity loss are

  • the uncontrolled use of unrenewable resources,
  • overexploitation of renewable resources;
  • land destruction for the mining industry, farming and cattle industry, buildings, and other infrastructures;
  • the unplanned advance of cities, and opening of new roads to connect those cities.  

All of them involving

  • deforestation and fragmentation of natural landscapes;
  • water, air, and soil pollution,
  • species loss, and reduction of biodiversity.

With globalization, transport around the world became normal. And when traveling around the world, new species are intentionally or unintentionally transported too. When these species, of animal or vegetable origin, get established in a new area, they overgrow to the point of turning invasive.

Invasive species are uncontrollable and cause severe damage in native endemic species by competing for resources. The whole ecosystem structure changes.

But there are some background glitches in the system that are the principal responsible for all the mentioned activities. Some important aspects are lacking

  • The respect for nature,
  • People´s education at different levels to care and protect wildlife,
  • Interest in keeping ancestral knowledge,
  • Planning and previous environmental impact studies,
  • Policies to control human activities,
  • Caring involved government.

If, as a society, we lack these aspects, the possibilities of changing our impact on nature are far away.  

6 0
2 years ago
Which of the following has the stages of getting food products to consumers in the
prohojiy [21]
D. Producer, packager, distributer, retailer

I hope this helped!
8 0
2 years ago
Which state of california uses a mechanism known as ___ to rehabilitate chronic violators of driving laws?
kiruha [24]

The State of California uses a mechanism known as "NOTS" to rehabilitate chronic violators of driving laws.  The Negligent Operator Treatment System (NOTS) is based on negligent operator points and consists of a computer-generated series of warning letters and progressive sanctions against the driving privilege.

<span> </span>

3 0
3 years ago
The principal advantages of asexual reproduction are what
olasank [31]
The principal advantage of asexual reproduction is that the organism does not have to waste time or energy looking for a mate.
6 0
2 years ago
What is the first thing that happens in photosynthesis?
Lerok [7]
<span>light energy is captured</span>
4 0
3 years ago
Other questions:
  • Which scientist showed that organisms did not grow spontaneously in beef broth
    7·2 answers
  • How does a star become a supernova?
    5·2 answers
  • What are the properties and characteristics of metamorphic rock
    15·2 answers
  • Organisms that can't live in the presence of oxygen are called facultative anaerobes.
    5·1 answer
  • A study was created to test the effects of jazz on people’s sleep patterns. The hypothesis of the experiment was that if people
    9·1 answer
  • What is social structure? What are some of the factors that influence social structure, please
    14·1 answer
  • Which of the following was NOT a recognized kingdom in Linnaeus' early classification system?
    13·1 answer
  • You are asked to research what the eye is. You read that it contains nerves, muscles, and blood cells. Therefore, you decide tha
    8·1 answer
  • What are some of the reasons that cell division is important to organisms choose all that apply
    6·2 answers
  • I'm a physics teacher of 30 years. I am teaching Summer School right now and have 3 of my students "cheating" by using your serv
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!