Intertidal Zones/Populations
Tides
Cephalopods and Echinoderms
Gastropods and Bivalves
Mystery Category: Spongebob
100

The zone that receives the least amount of sunlight and oxygen.

What is the lower intertidal zone?

100

The two planetary bodies responsible for tides.

What are the sun and the moon?

100

The structure in a cephalopod that breaks apart shells of prey.

What is a beak?

100

The structure that allows gastropods to move across a surface. 

What is a foot?

100

The town where spongebob and friends live. 

What is Bikini Bottom?

200

The zone that forms small pools and is occasionally submerged.

What is the middle intertidal zone?

200

The planetary body that has the strongest influence on tides.

What is the moon?

200

The amount of tentacles a squid has.

What is 2?

200

The structure that forms a hinge between two shells. (The oldest part of a bivalve's shell)

What is an umbo?

200

The name of Spongebob's gastropod pet.

Who is Gary?

300

A group of same-species individuals that live together.

What is a population?

300
The name of the strongest tide in a cycle. 

What is a spring tide?

300

The soft cavity that moves water in and out over the gills and can propel a cephalopod at tremendous speeds. 

What is a mantle?

What is a mantle cavity? 

300
The main ingredient in shells and other shell-like stuctures. 

What is calcium carbonate?

300

The item Plankton relentlessly tries to steal from Mr. Krabs.

What is the Krabby Patty?

What is the Krabby Patty secret formula?

400

All populations and abiotic factors in an area.

What is an ecosystem?

400

The name of the strongest tide of the year. 

What is a king tide?

400

Specialized cells that expand and contract to form pigments across the skin.

What are chromatophores? 

400

The muscle responsible for opening and closing a bivalve's shell

What is an adductor muscle? 

400

The only main character in Spongebob who is a vertebrate.

Who is Sandy Cheeks?

500

What happens when an area contains the largest population size that can be supported by the available resources. 

What is carrying capacity? 

500

The name of the tide when the sun and moon are perpendicular to each other. 

What is a neap tide?

500

Small structures that are powered by a water-vascular system and allow certain species of echinoderms to move.

What are tube feet?

500

The phylum that gastropods and bivalves belong to. 

What is mollusca? 

500

The only intertidal class/phylum covered in this unit that is not represented by one of the main characters in Spongebob.

What is a bivalve?