Answer:
B is the correct answer of this multiple choice question.
b. they are made up of atoms
c. they are made up of elements
d. they are made up of molecules
Answer:
B. It is a single-stranded molecule
Explanation:
Unlike DNA, RNA is usually single stranded and can folds back upon itself forming a secondary structure known as Hairpin loop. DNA is double stranded. In this way both RNA and DNA become more stable and are prevented from forming bonds with other molecules.
b. stable periods of change interrupted by rapidly occurring change.
c. a steady change in evolution over time.
d. species that are said to be in equilibrium. Student Answer: C
Unlike gradualism, punctuated equilibrium involves stable periods of change interrupted by rapidly occurring change. Correct option is b.
Unlike gradualism, which suggests a slow and continuous change in evolution over time, punctuated equilibrium proposes that species experience long periods of relative stability (equilibrium) during which there is little or no significant change. These stable periods are "punctuated" or interrupted by relatively short bursts of rapid evolutionary change. These bursts of change may result in the appearance of new species or major adaptations in response to environmental shifts or other factors.
Punctuated equilibrium, proposed by paleontologists Niles Eldredge and Stephen Jay Gould in the early 1970s, challenges the traditional view of a smooth, gradual evolution and highlights the importance of considering periods of stasis and rapid change in the fossil record.
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The chip contains more lipids than the saltine.
Answer:
The changes in the frequencies of blue and green eye alleles can not be predicted since genetic drift is a random event.
Explanation:
Genetic drift is the change in the allele frequencies of a population caused by some chance event. The effect of genetic drift is more pronounced in smaller populations since random events cause changes of greater magnitude in a small population. It can cause the complete loss of an allele from a small population.
According to the given information, the frequencies of alleles for green and blue eyes are changed by genetic drift which in turn would produce random evolutionary changes Either of the alleles may be eliminated from the population irrespective of the fact that the allele is beneficial or harmful. Thus, genetic drift would change the frequencies of the allele in an unpredictable manner.