Section 4

Protists and Humans

• Protists produce large amounts of oxygen, form the foundation of food webs, recycle materials, and play a role in several symbiotic relationships.

• Algal blooms can lead to the depletion of oxygen in water. Red tides produce harmful toxins.

Vocabulary algal bloom (p. 517) chemotaxis (p. 517) alginate (p. 518) carrageenan (p. 518)

diatomaceous earth (p. 518) malaria (p. 519)

• Protists can help scientists understand the movement of leukocytes, provide food, and provide important byproducts, such as alginate, carrageenan, and agar.

• Parasitic protists cause malaria, giardiasis, cryptosporidiosis, and trichomoniasis in humans.

sporozoite (p. 519) merozoite (p. 519) gametocyte (p. 519)

giardiasis (p. 520) cryptosporidiosis (p. 520) trichomoniasis (p. 520)

Was this article helpful?

0 0
Sirens Sleep Solution

Sirens Sleep Solution

Discover How To Sleep In Peace And Harmony In A World Full Of Uncertainty And Dramatically Improve Your Quality Of Life Today! Finally You Can Fully Equip Yourself With These “Must Have” Tools For Achieving Peace And Calmness And Live A Life Of Comfort That You Deserve!

Get My Free Ebook

Post a comment