Which zone of the ocean is labeled "B"?

Which zone of the ocean is labeled "C"?

Which zone of the ocean is labeled "F"?

Which zone of the ocean is labeled "D"?

Which zone of the ocean is labeled "E"?

Which geological feature is labeled "G"?

Say you are doing mark+recapture with a population of fish, but most of your marked fish die before your recapture is conducted. Will your population estimate be over or under?

Say you are doing mark+recapture on a population of fish, but your mark makes the fish much more likely to be recaptured. Will this cause an over- or under-estimate of the population?

A pearlfish spends the day inside the alimentary tract, or intestines, of a sea

cucumber. The fish emerges from the sea cucumber at night to feed on small

crustaceans. The pearlfish gets a safe place to live. The sea cucumber does not gain anything from the relationship, nor is it harmed. What type of symbiosis is this?

A sea urchin and an abalone both live in the kelp forest, and both eat kelp as their main food source. They often fight over access to kelp fronds. What type of symbiosis is this?

A boxer crab carries a pair of small anemones in its chelipeds, or claws. When

approached by a predator, the crab waves the stinging tentacles of the anemones to deter the predator. The anemones benefit from the small particles of food dropped by the crab during feeding. What type of symbiosis is this?

A cymothoid isopod lives inside the mouth of a snapper fish. The isopod severs blood vessels in the fish’s tongue, causing the tongue to atrophy and degenerate. The isopod then hooks its pereopods, or legs, to the base of the fish’s tongue, essentially replacing the tongue. The isopod stays there for the rest of its life, feeding on blood, mucus, and stray pieces of food from the fish. What type of symbiosis is this?

Which population would be best suited for RANDOM SAMPLING population estimation?

Which population would be best suited for MARK+RECAPTURE population estimation?

A(n) __ is something with clearly defined boundaries, distinct abiotic conditions, at least one energy source, & a community of interacting organisms.

What population distribution do these eelgrass display? (Remember what types of organisms typically display each distribution)

Which of the following is an ABIOTIC factor in an environment?

Which of the following is a DENSITY DEPENDENT limiting factor?

Population ecology is concerned with ____, which community ecology is concerned with ____.

The neritic zone is important because...

A keystone species is one that...