Ocean Conditions & Habitats
Basic Life Forms
Invertebrates
Vertebrates
Climate & Conservation
100

What does pH measure? 

Acidity 

100

This type of organism produces its own food, usually through photosynthesis or chemosynthesis, forming the base of the food web.

Autotroph

100

This phylum is characterized by having no true tissues or organs, a body full of pores, and is asymmetrical.

Phylum Porifera (sponges)

100

What are the 4 main groups of marine vertebrates?

Fish, reptile, bird, and mammal

100

This ecological term describes a species that is not native to a location and causes damage to the environment or economy.

Invasive Species 
200

What is the body of water/habitat called where freshwater and saltwater mix? 

Estuary

200

While algae are common, this organism is considered a "true plant" in the ocean.

Seagrass

200

Crabs belong to Phylum Arthropoda because they possess a segmented body, jointed appendages, and an exoskeleton made of this material.

Chitin

200

The Class Condricthyes, which includes sharks and rays, is distinguished by a skeleton made entirely of this material.

Cartilage 

200

These coastal habitats serve as crucial nursery grounds for juvenile fish and stabilize shorelines with their root systems.

Mangroves
300

What specific zone of the deep ocean floor includes extreme geological features such as deep-sea trenches?

Hadal Zone / Hadalpelagic

300

This term describes bacteria found thriving in an environment with extremely high salinity.

Halophile

300

In a coral reef ecosystem, corals rely on a mutualistic relationship with this type of algae to receive energy via photosynthesis.

Zooxanthellae

300

What is the order (generic group name) for whales & dolphins? 

Cetacean 

300

Ocean acidification is dangerous because it inhibits calcification, making it difficult for organisms to build these.

Shells or skeletons (calcium carbonate) 

400

These geological features on the seafloor emit dark, sulfurous plumes and support chemotrophs that use chemical energy to produce food.

Hydrothermal vents 

400

A jellyfish is an example of this specific type of plankton because it lives its entire life as a drifting organism.

Holoplankton

400

Sea stars and sea urchins belong to Phylum Echinodermata, defined by radial symmetry in adults and this unique system for movement.

Water Vascular System (with tube feet)

400

Organisms in the Pelagic Zone, such as tuna, often possess this body shape to aid in speed and swimming.

Fusiform

400

A species that exerts a disproportionately strong control on community structure relative to its abundance is known as this.

Keystone Species

500

What is the name of the small, extremely salty sea near the Mediterranean Sea?


Dead Sea

500

Often referred to as "Red Tide," this phenomenon occurs when algae produce potent toxins that can poison shellfish and humans.

Harmful algal bloom

500

What is the name of Mrs. McCarthy's daughter?

Lily

500

What is the name of the main fish used as an example of class Agnatha?

Lamprey

500

Primary Succession would most likely occur in a marine environment after this specific geological event creates new rock.

Formation of volcanic island.