Marine Life Classification and Characteristics

The video explores the three major lifestyles of marine life: benthic, planktonic, and necton. Benthic organisms live on the seafloor, planktonic organisms drift in the water column, and necton are free-swimming creatures. The video emphasizes ecological classifications and explains how some organisms can have multiple lifestyles. It also highlights the impact of human activities on marine life, particularly on necton.

Which of the following is NOT a major lifestyle of marine life?

• Benthic

• Planktonic

• Nektonic

• Terrestrial

What term is used for organisms that live on the seafloor?

• Benthic

• Pelagic

• Nekton

• Plankton

Which of the following is an example of an epifauna?

• Clam

• Worm

• Coral

• Barnacle

What is the significance of myofauna in marine ecosystems?

• They are the largest organisms in the ocean

• They are the main producers of oxygen

• They are a diverse group of tiny organisms

• They are large predators

Which type of plankton is known for being photosynthetic?

• Zooplankton

• Phytoplankton

• Jelly Plankton

• Viral Plankton

How do some plankton alter their position in the water column?

• By swimming against the current

• By altering their buoyancy

• By attaching to larger organisms

• By using fins

What is the term for plankton that spend their entire life cycle as plankton?

• Infraplankton

• Epiplankton

• Holoplankton

• Miroplankton

Which of the following is NOT considered a nekton?

• Squid

• Fish

• Sea Turtle

• Seaweed

What characteristic allows nekton to be classified as such?

• Ability to photosynthesize

• Ability to drift with currents

• Ability to live on the seafloor

• Ability to swim against currents

Why are nekton generally more endangered than other marine organisms?

• They are heavily exploited by humans

• They are smaller in size

• They are less diverse

• They have shorter lifespans