(Question)
Q: Electrons are located at fixed distances from the nucleus, what are they called? Read this paragraph and choose the correct option from the provided answers: Electrons are located at fixed distances from the nucleus, called energy levels. You can see the first three energy levels in the Figure below . The diagram also shows the maximum possible number of electrons at each energy level. Choices: - Energy layers - Positive levels - energy concentrations - energy levels A:
(Answer)
energy levels

(Question)
Q: What type of creature is a scallop? Read this paragraph and choose the correct option from the provided answers: Some mollusks, such as oysters and scallops, are important food sources. Choices: - insect - vertabrate - algae - mollusk A:
(Answer)
mollusk

(Question)
Q: What enzyme is found in the small intestine catalyzes the hydrolysis of lactose? Read this paragraph and choose the correct option from the provided answers: Chymotrypsin is found in the small intestine and catalyzes the hydrolysis of peptide bonds following aromatic amino acids. Lactase is found in the small intestine and catalyzes the hydrolysis of lactose. Pepsin is found in the stomach and catalyzes the hydrolysis of peptide bonds, primarily those that occur after aromatic amino acids. Maltase is found in the small intestine and catalyzes the hydrolysis of maltose. Choices: - elastases - lipase - amylase - lactase A:
(Answer)
lactase