What Was Produced by Photosynthesis Before the Cyanobacterial Lineage Developed

question 14

Multiple Choice

What was produced by photosynthesis before the cyanobacterial lineage developed on Earth?

• A) oxygen
• B) elemental sulfur
• C) ferrous iron
• D) hydrogen sulfide

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Definitions:

Longitudinal Research

involves studies conducted over a lengthy period, allowing researchers to observe developments or changes in the subjects over time.

Cross-Sectional Research

A study design that analyzes data collected from a population, or a representative subset, at one specific point in time.

Piaget

Jean Piaget was a Swiss psychologist known for his pioneering work in child development, particularly his theory of cognitive development, which describes how children construct a mental model of the world.

Developmental Psychologists

Developmental psychologists study the psychological growth and changes that occur throughout a human life span, including emotional, cognitive, and social development.