Marine Environments

Marine Environment - Marine life and Ecology

Multiple Select

Which of these animals live in the planktonic environment?

Multiple Choice

Benthic organisms live in close contact with the substrate.

• True

• False

Multiple Choice

Which order dolphins are part of?

• Pinnipeds

• Cetaceans

• Archaeocetes

• Carnivora

Multiple Choice

Cetaceans and pinnipeds are..

• Fishes

• Mammals

• Reptiles

• Amphibians

Multiple Select

Which is the main difference between chondrichthyes and osteichthyes?

• The shape of the body

• The composition of the endoskeleton

• The variety of colors

• Behavior

Multiple Choice

Which is the scientific name of the Mediterranean common turtle?

• Chelonia mydas

• Dermochelys coriacea

• Caretta caretta

• Natator depressus

Multiple Select

Crustaceans live only in the sea.

• True

• False

Multiple Choice

Which phylum do jellyfish belong to?

• Mollusca

• Cnidaria

• Porifera

• Echinodermata

Multiple Choice

Which marine invertebrates have pentarage symmetry?

• Cnidaria

• Crustacea

• Mollusca

• Echinodermata

Multiple Select

Which of these marine invertebrates belongs to the Phylum of Porifera?

Multiple Select

Why algae can create an habitat rich in species?

You can choose more than one answer

• Because they catch other species with a trap

• Some alge can create a 3D environment in which they host many species

• Because they are primary producers and provide food for other species

• Because they are colorful and the fishes like it

Multiple Choice

which of these species is a seagrass?

• Halimeda tuna

• Mesophillum alternans

• Posidonia oceanica

• Sargassum sp.

Multiple Choice

Posidonia banquette is important for the ecosystem because..

Find the wrong answer

• Food resource

• Biodiversity hotspot

• Protect the coast from hydrodynamism and erosion

• Allows us to walk on the beach without getting our feet dirty with sand

• Carbon sinks

Multiple Choice

What level of the food chain do fishes belong to?

• Level 1

  Photoautotrophs

• Level 2

  Herbivores

• Level 3

  Carnivores

• Level 4

  Top predators

Multiple Select

A decrease of photoautotrophs in the food chain creates an imbalance in all higher levels.

• True

• False