When Polar Floating Ice Melts Back in the Spring

question 1

Multiple Choice

When polar floating ice melts back in the spring,

• A) The sea surface becomes colder as heat is lost to the atmosphere
• B) Melting ice releases high amounts of nutrients that fuel phytoplankton blooms
• C) Krill suddenly becomes more abundant
• D) The ice tends never to return the next winter

---

Definitions:

Nervous Tissue

Specialized tissue that forms the nervous system, consisting of neurons and supporting cells, critical for transmitting impulses throughout the body.

Epithelial Tissue

A type of body tissue that lines the cavities and surfaces of structures throughout the body, playing roles in protection, secretion, and absorption.

Epithelial Tissue

A type of tissue that lines the outer surfaces of organs and blood vessels, as well as the inner surfaces of cavities in many internal organs.

Secretion

The process by which substances are produced and discharged from cells or glands for a particular function in the organism or for excretion.