AP Biology Practice 7 - Connecting Knowledge

What is the primary objective of Science Practice 7 in biology?

• To specialize deeply in a single biological discipline.

• To memorize a vast amount of biological facts and theories.

• To connect and relate biological knowledge across various scales, concepts, and domains.

• To conduct experiments and analyze data independently.

Which of the following biological entities would typically be characterized by a small size, relatively low complexity, and a short operational timespan?

• An entire ecosystem

• A human brain

• A DNA molecule

• A coral reef

Understanding how chlorophyll functions in photosynthesis and its impact on the global carbon cycle requires knowledge from which primary scientific domains?

• Geology and Astronomy

• Chemistry and Thermodynamics

• Mathematics and Engineering

• Anatomy and Cartography

Which of the following scenarios best illustrates a negative feedback mechanism within the endocrine system?

• During labor, the fetus exerts pressure on the uterine wall, inducing the production of oxytocin, which stimulates uterine wall contraction. The contractions cause the fetus to further push on the wall, increasing the production of oxytocin.

• After a meal, blood glucose levels become elevated, stimulating beta cells of the pancreas to release insulin into the blood. Excess glucose is then converted to glycogen in the liver, reducing blood glucose levels.

• At high elevation, atmospheric oxygen is more scarce. In response to signals that oxygen is low, the brain decreases an individual's rate of respiration to compensate for the difference.

• A transcription factor binds to the regulatory region of a gene, blocking the binding of another transcription factor required for expression.