Greenhouse gases(also known as GHGs) are gases in the earth's atmosphere that trap heat, such as carbon dioxide, methane, nitrous oxide, and certain synthetic chemicals.
The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and some is absorbed and re-radiated by greenhouse gases.
Answer:
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Explanation:
Answer:
The preferable option will be - 1.
1. The fish using ventral fins as "feet" will be present in increasing numbers.
Explanation:
After many years, the fish who are using ventral fins as "feet" will be present in increasing numbers because -
We know that
- These pools are temporary pools made up of rainwater. These pools do not last for longer times.
- Some fish have developed their ability to use their ventral fin as feet and can travel from one temporary pool to others.
- So, after many years, more and more fish will develop that ability to survive.
- As we all know about "the survival of the fittest" theory so some of them won't be able to make it.
- To develop their ventral fin as their real feet will take thousands of years and some genetic modification. So, that won't happen in many years.
Hypothesis contributed to the mistaken idea that protein is the genetic material because, with its 20 different amino acids, protein structure could be more variable than that of c.
<h3>What is DNA?</h3>
- Deoxyribonucleic acid is a kind of DNA.
- All known animals and many viruses contain genetic instructions in the form of a polymer called DNA, which is made up of two polynucleotide chains that coil around one another to form a double helix.
- Among the four major categories of macromolecules—along with proteins, lipids, and complex carbohydrates—nucleic acids are one of the four that are essential for all known forms of life (polysaccharides).
<h3>How does DNA get created?</h3>
- The chemical building blocks of DNA are called nucleotides.
- These constituents consist of one of four different nitrogen bases, a phosphate group, a sugar group, and a sugar group.
- DNA strands are built from chains of nucleotides that are bonded together with the phosphate and sugar groups swapped out.
Learn more about DNA here:
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