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
Luda [366]
3 years ago
8

How do contractile vacuoles help amoebas maintain homeostasis?

Biology
1 answer:
givi [52]3 years ago
6 0
Single celled organisms such as amoebas, especially those that live in fresh water, continually gain water from their surrounding environment by osmosis. This water is pumped into a contractile vacuole which fills with fluid and periodically fuses with the cell membrane, releasing its contents to the exterior. Thus the amount of water actively transported out of the cell is equal to the amount of water entering the cell due to osmosis and there are no variations in the tonicity of the cell. This is homeostasis at a simple level. Without the contractile vacuole, the amoeba would continue to absorb water until its cytoplasmic contents were diluted to such an extent that metabolism no longer occurred and it would die.
You might be interested in
Oncogenic virus cores can be_______.
Oksi-84 [34.3K]

Answer:

either RNA or DNA

Explanation:

The advancement of biomedical research techniques and molecular biology has led to the observation of the close relationship between certain viruses and some cancers in various animals. Thus, it has been shown that several DNA and RNA viruses are oncogenic in a wide variety of animals, from amphibians to primates, and there is growing evidence that some human cancers have a viral origin.

Based on this, we can conclude that oncogenic viruses can be composed of DNA or RNA.

4 0
3 years ago
Read 2 more answers
Which of the following is a correct statement on the state of an enzyme at the conclusion of a chemical reaction ?
fenix001 [56]

Answer:

d

Explanation:

8 0
3 years ago
In a forest ecosystem,clover is eaten by deer, which are eaten by wolves. If the population of clover suddenly decreased what wo
Setler [38]
<span>The population of scavengers would increase. </span>
4 0
3 years ago
Read 2 more answers
There is more oxygen in the ............. than in the blood flowing through the​
VARVARA [1.3K]

Answer:

The main job of red blood cells, or erythrocytes, is to carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product, away from the tissues and back to the lungs. Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.

Explanation:

<em>I think it is right...</em>

<em>Please make me brainliest</em>

7 0
2 years ago
Scientific study of the population cycles of the snowshoe hare and its predator, the lynx, has revealed that
ladessa [460]
This scientific study revealed that predation is the dominant factor affecting prey population on cycling. Population cycles is the feature where populations rise and fall over a predictable period of time. For example there are some species where population numbers have reasonably predictable patterns of change. From the study depicted in the question; when snowshoe hares are scarce, many lynx leave their home range in search of food. An increased predation of the hare due to high populations of lynx and other predators increases the decline in the hare population.
5 0
3 years ago
Other questions:
  • Kendra has a jar that contains nickels and dimes. The jar contains $4.25, and there is only one nickel. How many dimes are in th
    15·1 answer
  • What is our scientific name and what does it mean?
    8·1 answer
  • Which strains of bacteria were able to kill Lepidoptera sp. larvae
    5·1 answer
  • Which condition causes ocean water salinity to decrease?
    5·1 answer
  • Please answer these 2 questions correctly + clear explanation.
    12·1 answer
  • most of the carbon dioxide that a plant uses during photosynthesis is absorbed from the air give one other source of carbon diox
    10·1 answer
  • Which of these would be considered a "basic" science?
    12·2 answers
  • Write a brief report on bacteria and fermented milk products.​
    15·1 answer
  • HELP ME BROOOO PLEASE
    12·1 answer
  • Explain why there are fewer organisms at higher trophic levels.​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!