pituitary gland is the answer
B. churning movements of the gastrointestinal tract
C. pendular movements of the gastrointestinal tract
D. waves of muscular contractions that propel contents from one point to another
Answer:
Option (D).
Explanation:
Peristaltic movements are involuntary movement occur due to the longitudinal and circular muscle.Peristaltic waves helps in the passage of food from one point to another during the process of digestion.
Peristaltic waves occur mainly due to muscular contraction. These contractions propel the contents from one location to another. These waves occur in stomach, intestine and esophagus.
Thus, the correct answer is option (D).
Peristaltic waves are waves of muscular contractions that propel contents from one point to another. Therefore, the option is D.
The waves of muscular contractions known as peristaltic waves are responsible for moving materials from one location to another. They are in charge of the transportation of food through the digestive system from beginning to end.
Therefore, peristaltic waves are waves of muscular contractions that propel contents from one point to another
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particles in new rocks
liquid magma
materials dissolved in solutions
Most sedimentary rocks are formed in a process that involves water. It is one of the primary factors in the mineral formation of chemical sedimentary rock. Thus, option D is correct.
Mineral crusts are formed on the sedimentary grains as a result of dissolved minerals in groundwater precipitating (crystallizing) from water in the pore spaces and eventually cementing the sediments to create a rock.
Chemical sedimentary rocks are created when minerals precipitate from water. When dissolved substances leave water, it precipitates. Take a glass of water and add some salt (halite), for instance.
Additionally, it acts as an erosive and weathering agent, generating the grains that eventually form detrital sedimentary rock.
Therefore, materials dissolved in solutions is one source of the sediments that form sedimentary rocks.
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Answer:
D - materials dissolved in solutions
Explanation:
EDGE 2021
A)a large amount
B)a small amount
C)an unlimited amount
D)none of these
Answer:
A dilute solution has less amount of solute in the solvent. Therefore, the correct answer to the question is option B.
Explanation:
A solution is defined as a mixture of the solute and solvent. The concentration of solution depends upon the solute as well as solvent. A solution is known as to be dilute when there is less amount of solute and more amount of solvent.
A solution is said to be consulted when there is more amount of solute and less amount of solvent. Therefore, we can see that concentration of the solution is dependent upon the solute amount. In a solution a solute is present in in little less amount as compared with the solvent.
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They contained toxins or pollutants that eliminated natural competitors of the zebra mussel.
They contained few or no natural predators of the zebra mussel.
They contained few or no natural species occupying the niche filled by the zebra mussel.
Answer:
They contained few or no natural species occupying the niche filled by the zebra mussel.
Explanation:
All the available options are capable of contributing to the success of the zebra mussel in the United State water.
However, it is not true that the United State water contained few or no natural species occupying the niche filled by the zebra mussel. The zebra mussel are exotic species that got into the United State water around 1991 and were able to outcompete the native species and multiply rapidly, a characteristic of an invasive species.
Abundance of prey for the zebra mussel will ensure that their population thrives due to adequate availability of food.
The presence of toxins or pollutants that eliminate natural competitors of the zebra mussel will enable their population to thrive due to lack of competition for resources, provided the toxins/pollutants are not toxic to the zebra mussels themselves.
The presence of few or no natural predator will also enables the population of zebra mussels to thrive because that is another limiting factor removed.