Please tell what is fact or what is opinion

1. Cardinals are pretty.

Opinion

2. Birds help plants grow.

Fact

3. Many birds migrate in the winter.

Fact

4. Woodpeckers are annoying.

Opinion

5. Female birds lay eggs.

Fact

6. Birds sing beautifully.

Opinion

7. Birds have hollow bones.

Fact

8. Feathers help keep birds warm

Fact

9. Everyone should have a pet bird.

Opinion

10. All birds need food and water.

Fact

A fact is a statement that is true and a opinion is a statement someone thinks about it.

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1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.