This figure compares an intertidal habitat before and after an oil spill. Which one of the following organisms appears to persist after the spill?

Started by Landon

Global warming can affect which of the following?

Started by Sunshine

The technique for releasing hatchery-reared juvenile salmon into the wild, as seen here, is called:

Started by Alton

Overfishing can result in:

Started by Laverne

In addition to the deposit feeding brittle stars pictured, what other type of organism is abundant in this photograph?

Started by Elsie

Which one of the following has had the greatest evolutionary impact on deep-sea organisms?

Started by Corliss

Which of the following do not prevent predation?

Started by Fatima

The majority of productivity in the open-ocean is made possible by its microscopic inhabitants.

Started by Daphine

This figure illustrates that:

Started by Arianna

Sessile colonial organisms such as bryozoans, hydroids, sponges and tunicates tend to dominate which one of the following habitats:

Started by Hortencia

What are the filter feeding structures used by Christmas tree worms, pictured here?

Started by Francie

Which of the following does not pertain to zooxanthellae?

Started by Chauncey

Which of the following are secondary consumers in this salt marsh food web?

Started by Annelle

Mangrove forests replace salt marshes in subtropical and tropical systems.

Started by Jessia

What do we call the large, conspicuous green organisms pictured in this tide pool?

Started by Buffy

Classical zonation patterns in the intertidal where space is limited result from:

Started by Melaine

In this figure, which one of the following images is considered to be an aggressive behavior?

Started by Lauri

Which of the following is not a pinniped:

Started by Burma

What distinguishes the leatherback sea turtle from other sea turtles pictured in this figure?

Started by Domitila

Which of the following is not an adaptation for flight in marine birds:

Started by Adalberto