The Decline of Cyanobacteria in the Early Cambrian Oceans Was

question 4

Multiple Choice

The decline of cyanobacteria in the early Cambrian oceans was most likely related to

• A)the movement of animals onto land.
• B)the evolution of land plants.
• C)an increase in the number of predatory fish.
• D)an increase in organisms with suspension-feeding mouthparts.
• E)a decline in the number of marine decomposers.

---

Definitions:

Physical Illnesses

Diseases or conditions that affect the body's function or structure, not primarily stemming from a mental or emotional cause.

Psychological Factors

Elements influencing behaviors, emotions, and processes of the human mind.

Biopsychosocial Model

A holistic approach to understanding human health and illness that considers biological, psychological, and social factors.

Disease Outcomes

The results or consequences of managing and treating a disease, including recovery, complications, and mortality.