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
Free_Kalibri [48]
3 years ago
6

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

Biology
1 answer:
morpeh [17]3 years ago
3 0

The major function of the contractile vacuole of amoeba is osmoregulation. The solute concentration found in the cell of amoeba's cytoplasm is more than the solute concentration in the freshwater that surround the external part of the organism, thus, water enter the cell through osmosis. The contractile vacuole collect the excess water and expel it through an opening in the cell membrane. By doing this, the contractile vacuole maintains the water balance in amoeba. This how the contractile vacuole normally operate.

In a situation where amoeba is placed in seawater, then water from the cell cytoplasm will rush out of amoeba cell, because of the higher salt content of the surrounding medium. The contractile vacuole will respond to the situation by increasing its contraction and pumping water out the cell in an accelerated manner, this will lead to the shrinking of the cell.

You might be interested in
The material that a rubber ball is made of is different from the material that makes up something like a pool table ball because
Lerok [7]

Answer:

h7rhocrbix rcrcrxineox rx ex e crc

rxnrikcjricrc

Explanation:

deibzienizjei xebiebsie is i3 she su 3u d4

4 0
2 years ago
" The molecules used to cut, copy, and connect the DNA segments used in this process are
Elanso [62]
After looking at the above diagram given, Enzymes are the molecules that were used to cut, copy, and to connect the DNA segments. The correct answer is 2. Make sure to check the number choices, they are out of order on this particular question. 
7 0
3 years ago
Compare the processes by which a car and a human use "fuel" to perform work. What are the similarities?
Alenkinab [10]

A car needs to be fueled before it can set in motion to posses a given amount of kinetic energy.

<h3>What is energy?</h3>

Energy is the capacity of doing work. In physics, there exist different types of energy; among which are follows:

  • Kinetic energy: Kinetic energy can simply be defined as that energy a body posses due to its motion
  • Potential energy: , On the other hand, potential energy is the energy a body has due to its relative position.

Other forms of energy include:

  • Solar energy
  • Nuclear energy
  • Mechanical energy

So therefore, a car needs to be fueled before it can set in motion to posses a given amount of kinetic energy.

Therefore, kinetic energy is the energy which allows a car to be fueled before it can set in motion .

Learn more about kinetic energy:

brainly.com/question/25959744

#SPJ1

8 0
2 years ago
Explain how modern classification is different from linnaeus methods, and why scientists changed it
SCORPION-xisa [38]

The answer is that the criteria of classification change with the improved understanding of organisms around us. During the time of Aristotle, not much was known about the living organisms. So, he classified them as he observed. Plants were classified into herbs, shrubs and trees; very much like what’s taught to a second grade student. Animals as Enaima and Anaima based on the presence or absence of RBCs. After him, Carolus Linnaeus tried his hand over classification. He came up with the 2 kingdom classification: Plants and Animals. He considered only a set of morphological and physiological criteria to decide the kingdom to which an organism belongs. It includes presence of cell wall, mode of nutrition, contractile vacuole, locomotion and others. Based on these criteria, he included widely differing organisms into a single kingdom, for example, fungi, bacteria, algae, and higher plants were included into plant kingdom just because they have cell wall as a common aspect. Then came, Ernst Haeckel, who came with a third kingdom of Protista to include unicellular organisms. Copeland gave a 4 kingdom classification segregating unicellular organisms into 2 separate kingdoms based on their nuclear structure. R.H. Whittaker came next introducing the most accepted 5 kingdom classification system. You should understand one thing that man’s knowledge of classifying organisms improved with the improving technologies available to him, which he exploited to very effective extent. Carl Woese gave the 6 kingdom classification and 3 domain system based on the 16S rRNA sequence.

Our understanding of organisms around us is improving day by day and the system of classification will also change further in pace with the improvement in technology.

I hope this helps! :D]

~ Kana ^^

8 0
3 years ago
Which of the following is a population?
kow [346]

Answer:

maybe C because it says different kind of fish that live in one area that is a lake

5 0
2 years ago
Read 2 more answers
Other questions:
  • Zebra herds that live and move together are an example of what type of dispersion?
    10·1 answer
  • What is the name for the percentage of space not occupied by solid matter in soil?
    5·2 answers
  • Do kangaroos drop their babies when they run away
    6·1 answer
  • What is the consequence of global warming
    12·2 answers
  • Why did life first occur in the oceans and not on Earth’s surface?
    10·2 answers
  • How does the purpose of he Krebs cycle differ from the purpose of the calvin cycle
    6·1 answer
  • As the sun shines on Earth, plants use its energy to complete the process of photosynthesis. Energy is transformed during the pr
    7·1 answer
  • In active transport, a. vesicle inside the cell fuses with the plasma membrane and releases its contents outside the cell. b. th
    6·1 answer
  • Did the mice on each of the dark lava flows have the same mutation?
    10·1 answer
  • Whats a lion baby called
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!