Answer:
See the answer below
Explanation:
The contractile vacuole primarily functions for the excretion of excess water in organisms that possess the organelle. Paramecia that lives in freshwater would need to constantly get rid of excess water that is likely to be entering the cell due to the fact that the ambient water is hypotonic to their cells. The cytosols of paramecia that live in freshwater have a higher solute concentration and hence, lower water potential than the surrounding freshwater.
The paramecia that live in salt water do not have a need for the contractile vacuole because the problem of excess water entering their cells may not arise. The salt water may not be hypotonic to the cytosol of the paramecia.
Paramecia are single-celled eukaryotic organisms, which are found in aquatic habitats. They are long and slipper-shaped organisms, which have many membrane-bound cell organelles.
The paramecium is the protists, which are found in the marine habitat. The organisms are eukaryotic and have well-developed cell organelles.
The presence of contractile vacuoles in the paramecium regulates the osmoregulation and discharge of excess water. The contractile vacuole controls the intracellular water balance by discharging or accumulating excess water.
The saline water has a high concentration of salt, whereas the freshwater does not have salty compounds.
Thus, the paramecium in saline water has contractile vacuoles to regulate osmoregulation.
To know more about paramecium, refer to the following link:
https://brainly.com/question/2530557
1.
What is evolution?
Answer:
Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.
Explanation:
PLEASE ANSWER ASAP WILL MARK BRAINLIEST:
A region experiences frequent landslides from heavy rains. How can the local residents lower the frequency of landslides in the region?
B. Plant vegetation on the slops that expreience landslides.
E. Reduce the sloped where landslides occur.
Hope this helped, please mark brainiest!
In "Close Encounters of the Bear Kind," what is the author's point of view toward bear researcher, John Hechtel?
Answer:
they are very facinating in there own way
A virus has a nucleus and other organelles
True
False
Answer:
False it just have a false nucleus surrounded by a protein
Answer:
False
Explanation:
Rain forests are home to many of the largest animals on Earth.
True
False
Answer:
True
Explanation:
Mrs. Strunk's Earth Science class used an erosion model to investigate the relationship between the slope of a hill, or incline, and the amount of soil that washes off of the incline. The class increased the slope of the incline from 1 to 5. Then, they poured 100 ml of water down the incline. Finally, they collected the soil from a tray at the bottom of the incline, dried the soil in an oven, and used a balance to find the mass of the soil. The data from their study is shown below. Based on the graph, more soil is washed away when A. there are fewer rocks in the soil. B. the slope of the incline is steeper. C. the soil is made mostly of sand. D. the slope of the incline is less steep
Answer:
B. the slope of the incline is steeper.
Explanation: Cause i guessed and got it right.
Answer: it would be, b the slope of the incline is steeper.
Explanation:
Jackie is going to her local gardening store. She is looking for soil to start her own personal herb garden with oregano, sage, and peppermint. SELECT the properties of soil that Jackie should consider when choosing the soil for her herb garden?
A.
Jackie should consider the following properties: soil texture, soil structure and soil fertility.
B.
Jackie should consider the following properties: soil texture, bedrock and soil fertility.
C.
Jackie should consider the following properties: soil texture, soil structure and bedrock.
D.
Jackie should consider the following properties: bedrock, soil structure and soil fertility.
Answer:
pretty sure its a
Explanation:
Bedrock seems pretty weird to look out for in soil
what is fertilization
Answer:
The action of fertilizing a female egg, from a male subject
Answer:
there is different fertilization what one do you mean
Explanation:
In order for a male to have
the recessive disease, what
would his genotype be?
One possible result of chromosomal breakage is for a fragment to join a nonhomologous chromosome. This is called:______
a. deletion
b. inversion
c. duplication
d. translocation
e. aneuploidy
Answer:
The correct answer is: translocation.
Explanation:
When a chromosome breaks, there are many ways in which this can affect the integrity of the genes, as it can cause the deletion of one or several parts of the DNA. Other abnormalities include duplication and inversion of the genes.
When one fragment of the DNA breaks and joins a nonhomologous chromosome, the event happening is a translocation. There are two types of chromosomal translocations:
reciprocal translocations, in which the involved chromosomes exchange segments with one another.Robertsonian translocations, in which an entire chromosome joins another chromosome's centromere.Depending on the type of translocation and the amount and nature of the genes, this abnormality can affect individuals in different degrees.
Aneuploidies, on the other hand, are not related to the integrity of the chromosomes but rather the number of chromosomes. While euploidy refers to a total of 46 chromosomes in humans, aneuploidy describes individuals with more or fewer chromosomes.
All of these anomalies can be identified with a karyotype.
Answer:
Translocation
How do punnets squares use genetics
Which factors involving the activities of people are a threat to biodiversity?
Answer:
a few factors include pollution, littering, hunting, poaching, and loss of habitat.
has anyone done this and wanna help me out ? I’m confused
Answer:what do u mean
Explanation: super wierd what do u need help with
Answer:
Explanation:
Nope Sorry :(
Why was modern classification invented?
Answer:
So scienticst understood that species
A strain of bacteria possesses a temperature‑sensitive mutation in the gene that encodes the rho subunit. At high temperatures, rho is not functional. When these bacteria are raised at elevated temperatures, what would you expect to observe?
a. All RNA molecules are shorter than normal because the absence of functional rho would derail the transcription.
b. Transcription does not take place because mutant rho would interfere with the RNA polymerase binding to the template.
c. Some RNA molecules would be longer than normal because these RNA came from the gene with rho-dependent terminator.
d. Some RNA molecules would be normal length because not every terminator in bacterial genes would be rho-dependent.
e. All RNA molecules are longer than normal because the absence of functional rho means the transcription continues beyond the proper termination point.
Answer:
d. Some RNA molecules would be normal length because not every terminator in bacterial genes would be rho-dependent.
Explanation:
Rho is a prokaryotic protein which is required at the end of transcription (termination) of dependent rho-terminator sequences. During transcription, Rho binds at the end of the single-stranded RNA sequence in a site known as 'transcription terminator pause site'. This factor has helicase activity dependent on the hydrolysis of Adenosine triphosphate (ATP) to ADP. The Rho binding site consists of a cytosine-rich region (∼ 70 nucleotides) that lacks RNA secondary structure.
Plss due today! Will mark brainly!
1. Describe capillary action and give an example.
2. What is density?
3. What types of substance have pH values less than 7?
4. Give an example of a substance with a high concentration of H+ ions.
5. Give an example of a substance with a low concentration of H+ ions.
6. What is specific heat?
7. Does water have a high specific heat? What does this mean?
Does mutualism involve abiotic or abiotic factors? Or both?
Answer: Biotic factor
The muscle of the forearm that extends the digits is appropriately called the:
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
a
Flexor carpi radialis
b
Biceps brachii
с
Extensor digitorum
d
Extensor carpi radialis longus
Answer:
Answer is letter C
Explanation:
The full name of this muscle is actually Extensor Digitorium Communus
The Digitorium part of its name also helps identify it.
During photosynthesis and cellular respiration, plant cells carry out processes that involve both light energy and chemical energy. Sort each tile into the correct column. Light energy, Chemical energy. Released through cellular respiration, used to directly power photosynthesis, captured by chlorophyll, used to directly power cell growth
Answer:
Light Energy: used to power photosynthesis, captured by chlorophyll
Chemical energy: Released through cellular respiration, used to directly power cell growth
Cellular respiration is the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions.
Sunlight is converted to chemical energy in the form of ATP (adenosine triphosphate), which is the main energy-storing molecule in living organisms. ATP is then transported throughout the chloroplast and used to provide the chemical energy necessary to power other metabolic reactions.They take sunlight and combine carbon dioxide (CO₂) and water (H₂O). They create glucose (C₆H₁₂O₆) and oxygen gas (O₂). By this process, plants change energy from the sun into glucose. The reverse of this process is cellular respiration.Thus, Light energy is used to directly power photosynthesis and Chemical energy is released through cellular respiration.
Learn more:
brainly.com/question/6500923
What is the difference between diffusion and osmosis?
Answer:
Osmosis is the movement of solvent particles across the a semipermeable membrane from a dilute solution into a concentrated solution.
Diffusion is the movement of particles from an area of higher concentration to lower concentration.
Explanation:
The overall effect is to equalize concentration throughout the medium.
Answer:
What is the difference between osmosis and diffusion?
Explanation:
why do we need to know about the nature of science
PLEASE HElp 15 points If a scientific idea has been proven 100% of the time, like gravity, it becomes a blank
whereas an idea that is generally believed but has not been proven to be 100% true would be called a blank
Answer:
If a scientific idea has been proven 100% of the time, like gravity, it becomes a theory, whereas an idea that is generally believed but has not been proven to be 100% true would be called a hypothesis
Explanation:
In scientific research, a hypothesis is an idea put forward before any research has been completed. It is based on previous data, and requires scientific testing before it is confirmed and becomes a theory.
A theory is a principle put forward to explain a range of observations. For example, multiple lines of evidence support the theory of evolution. There is no significant data that refutes the theory.
Which does not have scales?
amphibian
reptile
fish
Answer: amphibians
Explanation:
noice :3
Thermohaline circulation supplies heat to polar
Answer:
Your are correct.
What prevents a lake or ocean from freezing solid?
Answer:
The surface layer of the water freezes solid creating a barrier that insulates the ice below so that it keeps a steady temperature usually a few degrees above freezing (32 degrees).
Explanation:
7. _________________ consumers eat secondary consumers.
I don't care if it's right I just need to put something down
What type of light is trapped in the Green House
Answer:
infrared light
Explanation:
The Earth absorbs this energy from the Sun and reemits it in the form of invisible infrared light. This energy is trapped by the greenhouse effect. Greenhouse gases have various shapes that make them effective at absorbing infrared radiation emitted by Earth.
It is a light called an infrared light.
Only the light in the visible spectrum can penetrate into the greenhouse whereas incoming infrared light, which is also known as heat radiation, is blocked by the glass or plastic.
What is the SA:V ratio?
can wolfs have medicine?
Answer:
Probably if it badly hurt then you would need it otherwise i think not.