the answer to this question is solar system, earth is a singular planet, galaxy contains stars but does dot orbit around a central star, and the sun is a star
B.they make thier own food
Answer:
very very .. tiny tiny tiny organisms
Answer:
1. Carbohydrate
2. Carbohydrate
3. Lipids
4. Proteins
5. Nucleic Acids
6. Lipids
7. Proteins
8. Nucleic Acids
Explanation:
1. Carbohydrate is used as primary source of energy in cells as each sugar molecule in carbohydrate breaks and form high energy ATP, which is primary energy utilized by all cells.
2. Carbohydrates have the basic formula CH2O as carbohydrate is composed of of carbon and a 2:1 ratio of hydrogen to oxygen.
3. Lipids or fatty acid can be saturated or unsaturated, it depends on the number of hydrogen in the tail. Saturated fatty acids have single bonds while unsaturated fatty acid have some missing hydrogen in tail and form double bond.
4. Enzymes are example of proteins because enzymes are made up of many amino acids binded in a very specific and unique order and amino acid are building blocks of proteins.
5. Nucleic acid is the monomer consist of nucleotide as all nucleic acids are made up of same five pieces are uracil, guanine, thymine, cytosine, and adenine.
6. Lipids are considered as hydrophobic as it is composed of carbon and hydrogen and have mostly nonpolar carbon–hydrogen or carbon–carbon bonds.
7. Proteins are most complex macromolecules as they made up of hundreds of amino acids and each amino acid has its own specific shape. All the properties of proteins depends on these specific amino acids
8. when some one look into mirror, they see their own image or phenotype characters which are due to the genetic makeup in the body. DNA is responsible for the phenotype and genotype where DNA is a nucleic acid. Hence, the , one will see while looking in the mirror is nucleic acid.
The deeper you go down in to the rock the older the fossils get. So when the scientists go in to the rock they can say what animals lived in that time and what animal was the oldest.
