Answer:
<em>The correct option is C) H2SO4</em>
Explanation:
A molecule can be described as a substance which is made up of the same kind of atoms or element. For example, O₂, N₂ etc. Hence, option A is an example of an element.
A compound can be described as a substance which is made from different atoms or elements. For example, H2SO4 is made up of the elements hydrogen, oxygen, sulphur. Hence, option C represents an example of a compound.
Explanation:
protect cells and organelles from the surrounding environment
The dog gets warm from the fire when heat energy is transferred by radiation.
Light waves are the energy that is created when burning wood. Different light waves of various energies combine to form flames. The energy of light is converted into heat when these light waves are absorbed by the dog's body, warming it.
Hence, radiation waves are the result of moving energy.
Therefore, radiation is the right response.
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Answer:
Prometaphase
Explanation:
Prometaphase is the second phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prometaphase, the physical barrier that encloses the nucleus, called the nuclear envelope, breaks down.
I will answer the question accordingly so that it help you under stand it better.
Question A.
During an extreme heat wave, plants with white flowers survive better.
What mechanism is in work here?
Answer: Mechanism of Natural Selection
will work here. This is called survival of the fittest which means the best color which fits in harsh conditions will dominate over others and will survive for longer time.
What is the effect on the gene pool?
Answer: The Frequency of white allele will increases
because white color is the best fit to extreme heat wave.
Question B.
A person uproots the five closest plants, which all happen to have white flowers.
What mechanism is in work here?
Answer: The mechanism of gene flow will work here as color of flower represents genotype of flower.
What is the effect on the gene pool?
Answer: The Frequency of white allele will increases because genotype of white flowers is increased.