Explanation:
Water can act as an acid and a base. As an acid, water donates H+, the hydrogen ion. As a base, water donates OH-, the hydroxide ion
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Many scientists agree that the universe is about 13 billion years old.
<span>For bees, their forage or food supply consists of nectar and pollen from blooming plants within flight range</span>
Answer:
The correct answer would be 30 million years.
The molecular clock is a technique used to determine the time when the two species diverged from a common ancestor. It uses the mutation rate to determine the same.
Mutation rate is the rate at which a number of mutations take place in a given unit time.
For example, the mutation rate in a given question is one mutation per 10 million years, that is, one nucleotide is mutated in 10 million years.
If we compare the DNA sequence of the given two species, we would find that three mutations have taken place.
Species A: CTTAAGCTAGTAAGGACC
Species B: CATAAGTTAGTAAGGTCC
Thus, 30 million years would have passed to evolve three mutations.
Hence, they must have shared a common ancestor around 30 million years ago.
Answer:
The answer is below
Explanation:
Personal Value is a term that is used to describe the personal or unique goals and aspirations of an individual that encourage and spur each individual to do things and at the same time serve as subjective standards or beliefs that lead them in all situations.
Examples of Personal values are:
Family, Freedom, Health, Wealth, Peace, Knowledge, and Wisdom.
