Marine Microbes, Invertebrates, & Plants

Microbes

100

Group of prokaryotes known for living in extreme environments

archaea

200

The two types of prokaryotes

bacteria and archaea

300

Microbes that are not considered living

viruses

400

𝓓𝓐𝓘ℒႸ 𝓓𝓞𝓤ℬℒ𝓔: Sticky, drifting material made of mucus, feces, and dead organisms that falls through the water column and feeds deeper ocean life

marine snow

500

Single-celled plant-like microbes

unicellular protists/phytoplankton/algae

600

Cell wall component in most marine bacteria that helps give them structure

peptidoglycan

Sponges & Cnidarians

100

The type of symmetry that sponges exhibit

asymmetry

200

The method by which sponges acquire food

filter feeding/suspension feeding

300

Free-swimming stage of cnidarian life cycle

medusa

400

Stinging cells in cnidarians

cnidocytes

500

Type of cell in sponges that uses flagella to create water currents and trap food particles

choanocytes/collar cells

600

Tiny openings in a sponge's body that allow water to enter

ostia

Worms

100

Worms having a flattened body plan

flatworms

200

Type of symmetry exhibited by worms

bilateral symmetry

300

Internal support system in many worms where a fluid-filled body cavity works with muscles to help the organism move and maintain its shape

hydrostatic skeleton

400

Phylum to which roundworms belong

Nematoda

500

Phylum to which segmented worms belong

Annelida

600

Structure used by ribbon worms to capture prey

proboscis

Major Invertebrates

100

Group of marine arthropods that includes crabs, lobsters, and shrimp

crustaceans

200

Hard outer covering made of chitin that protects arthropods

exoskeleton

300

Ǝ˥ᙠ∩Oᗡ ⅄˥I∀ᗡ: Fluid-filled system in echinoderms used for movement and feeding

water vascular system

400

Echinoderms exhibit this type of symmetry as adults.

radial symmetry

500

Structure in bivalves that allows water to enter and exit the body for feeding and respiration

siphon

600

Mollusks have this rough scraping structure that aids in feeding

radula

Seaweeds & Plants

100

Brown algae that form underwater forests

kelp

200

Marine flowering plant with prop roots and commonly found in tropical coastl environments

mangroves

300

Marine flowering plants found in shallow waters

seagrasses

400

Leaf-like structure of a seaweed

blade

500

Root-like structure that anchors seaweed

holdfast

600

Thickening agent derived from red seaweeds that is commonly used in foods like yogurt and milkshakes

carrageenan

What Am I? (Random)

100

I am a soft-bodied, worm-shaped echinoderm that can eject my internal organs when threatened.

sea cucumber

200

I am a unicellular organism with two flagella that can cause harmful algal blooms.

dinoflagellate

300

I am a photosynthetic bacterium that produces oxygen and can form structures called stromatolites.

cyanobacteria

400

I am a transparent, planktonic animal with rows of comb plates used for movement. I do not have stinging cells.

ctenophore/comb jelly

500

Đ₳łⱠɎ ĐØɄ฿ⱠɆ: I am a heterotrophic protozoan with a silica skeleton that helps form siliceous ooze on the ocean floor.

radiolarian

600

I am a photosynthetic marine protist with a calcium carbonate coating that contributes to calcareous ooze.

coccolithophore