BSC 110 Exam 1 Review

Which of the following levels of biological hierarchy describes multiple populations interacting with each other?

• Organism

• Community

• Ecosystem

• Biosphere

According to the following figure, what is the closest evolutionary relative of protists?

• Bacteria

• Plants

• Animals

Which of the following domains of life is NOT part of Prokarya?

• Bacteria

• Archaea

• Eukarya

After making a hypothesis, what is the next step in the scientific method?

• Make an observation

• Make a prediction

• Conduct an experiment
• Publish data

Which of the following chemical bonds is the weakest, and results from interactions between polar molecules?

• Ionic bond

• Covalent bond

• Hydrogen bond

Nitrogen has 5 electrons in its valence shell, how many bonds will it seek to make?

• 1

• 2

• 3

• 4

A solution has a pH of 3, how would it be described?

• Acidic

• Neutral

• Basic

Biomolecule polymers are broken down by which reaction?

• Hydrolysis

• Dehydration

Amino acids are the building blocks of which biomolecule?

• Lipids

• Carbohydrates

• Proteins

• Nucleic Acids

True or False: The energy molecule ATP is a nucleotide.

• True

• False