The Biosphere Consists of the _______________

question 47

Multiple Choice

The biosphere consists of the _______________

• A)solid earth beneath our feet, plus the air we breathe
• B)saltwater and fresh water in surface bodies and the atmosphere
• C)sum of all the planet's living organisms and the abiotic portions of the environment with which they interact
• D)air surrounding our planet, plus the water we drink
• E)abiotic portions of the environment

---

Definitions:

Phagocytic

Pertaining to cells that have the ability to engulf and absorb particles or other cells through a process called phagocytosis, key for immune defense.

Lobed Nucleus

A characteristic of certain white blood cells, where the nucleus is divided into several connected lobes, often seen in neutrophils.

Erythropoietin

A hormone produced by the kidneys that stimulates red blood cell production in response to low oxygen levels in the body's tissues.

Fibrinogen Inactivator

An enzyme or agent that inhibits the function of fibrinogen, a protein necessary for blood clot formation.