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
Learn more about peristaltic waves, here:
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B) decrease the concentration of both solutions
Eliminate
C) increase the concentration of one of the solutions
D) decrease the concentration of one of the solutions
Answer:
A.) increase the concentration of both solutions
Explanation: this is the correct answer
Blocking would be best used 'by blocking on chicken type'. This means conducting separate trials for different types of chickens while testing the chicken feed because the type of chicken was determined to impact egg production.
In a scientific experiment where the aim is to conclude whether a certain chicken feed leads to higher egg production, blocking would be used to control the variables that might affect the result of the experiment. According to the information given, chicken's water intake is said to have negligible influence on egg production, however, the type of chicken does impact the production quantities.
Therefore, the ideal way to apply blocking to the experiment would be by differentiating the groups of chickens based on their type; this method is referred to as blocking on chicken type. The implication of this is, testing different chicken feeds on different types of chickens separately to ensure the accuracy of the experiment results by eliminating confounding factors.
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b. vital organs that are functional only in alternate generations of a lineage
c. redundant organs present in an organism, which have been functional in the organism’s ancestors
d. redundant organs present in an organism, which will be functional in the succeeding generations of the lineage
Answer:
The correct answer is c. redundant organs present in an organism, which have been functional in the organism’s ancestors.
Vestigial organ are those which are retained in the evolution however lost their original functions due to change living habits or surroundings of the organisms.
They serve as the evidence of evolution and help in evolutionary studies.
For example, vermiform appendix, nictating membrane of eye, ear muscle etc are vestigial organs found in humans.
Coarse, infertile soil is usually found near the base of a mountain.
Rocks formed at low temperatures weather more quickly than rocks formed at high temperatures.
Weathering is the movement of sediment from one location to another.
Correct answer: B). Coarse, infertile soil is usually found near the base of a mountain.
The course, infertile soil is normally found near the base of the mountains. It provides stable bases for the high mountain. It helps to keep the ground firm and it would take a longer time to erode and evolve. These soil are a type of loamy soil. The nature of erosion can affect the composition and structure of these type of soil. Rest all other options are false.
Hence, the correct answer would be option B
Answer:
Explanation:
Polygenic