Which Is True of Algae

question 23

Multiple Choice

Which is true of algae?

• A) Algae can be single-celled or multi-cellular organisms.
• B) Algae carry out at least half of global photosynthesis.
• C) Algae include seaweed and kelp.
• D) Algae are found in symbiotic combination with fungi.
• E) Algae can be all of these.

---

Definitions:

Glial Cells

Non-neuronal cells in the brain and central nervous system that support, protect, and provide a support framework for neurons.

Myelin

A fatty substance that surrounds nerve fibers, providing insulation and speeding the transmission of nerve impulses.

Neurons

Specialized cells of the nervous system responsible for transmitting information throughout the body via electrical and chemical signals.

Visual Cortex

The part of the cerebral cortex involved in processing visual information, located in the back of the brain.