Q: Answer the following question given this paragraph: If you are a typical teenager, you like to eat. For your body to break down, absorb and spread the nutrients from your food throughout your body, your digestive system and endocrine system need to work together. The endocrine system sends hormones around your body to communicate between cells. Essentially, hormones are chemical messenger molecules. Q: What are the "chemical messenger" molecules used by the endocrine system? A: | OPTIONS:
- acids
- axons
- enzymes
- hormones
A: hormones

Q: Answer the following question given this paragraph: Elasticity is the ability of a material to return to its original shape after being stretched or compressed. When an elastic material is stretched or compressed, it exerts elastic force. This force increases the more the material is stretched or compressed. Q: Elasticity is the ability of a material to return to its original shape after being stretched or? A: | OPTIONS:
- combustion
- Contained
- correlated
- compressed
A: compressed

Q: Answer the following question given this paragraph: Q: The chloroplast integrates the two stages of what process? A: | OPTIONS:
- breathing
- defacation
- polarization
- photosynthesis
A: photosynthesis

Q: Answer the following question given this paragraph: Proteins are molecules that have many different functions in living things. All proteins are made of monomers called amino acids ( Figure below ) that connect together like beads on a necklace ( Figure below ). There are only 20 common amino acids needed to build proteins. These amino acids form in thousands of different combinations, making about 100,000 or more unique proteins in humans. Proteins can differ in both the number and order of amino acids. It is the number and order of amino acids that determines the shape of the protein, and it is the shape (structure) of the protein that determines the unique function of the protein. Small proteins have just a few hundred amino acids. The largest proteins have more than 25,000 amino acids. Q: All proteins are made of monomers called what? A: | OPTIONS:
- monotides
- aminotides
- peptides
- amino acids
A: amino acids