1/17/2023 Homework #17: Coral Reefs con'd

What term describes the variety of different organisms found in an ecosystem?

• population

• biodiversity

• ecosystem services

• symbiosis

Which is an abiotic factor that is most likely to limit the number of frogs living in a pond?

• the color of the water

• the number of predators

• the temperature of the water

• the populations of producers

Why is biodiversity so important?

• Because all species depend on each other to survive, so if one becomes extinct another species that relies on it could go extinct as well
• Because it’s better to have only one variation of each species.
• Because it better to only have a few species on Earth.
• Honestly, I have no idea what biodiversity is!

What is an ecosystem?

• all the living and nonliving factors in an area

• a system of pipes and drains in a field

• all the living organisms in an environment

• an organization system used by scientists

Based on the food web, which is a producer?

• turtle grass

• shrimp

• clownfish

• nurse shark

What is one big threat to coral reefs?

• sharks

• pollution

• turtles

• anemones

Marine ecosystem that is built by polyps secreting limestone. They also have a symbiotic relationship with algae.

• estuary

• salt marsh

• mangrove swamps

• coral reef

Found in clear, warm salt water with lots of sunlight; most marine organisms are found here.

• river

• swamp

• coral reef

• lake

True or False: The amount of fish in this photo represent great biodiversity.

• false

• true

Identify the type of corals:

• Healthy- Stressed- Bleached

• Healthy- Bleached - Stressed

• Stressed- Bleached- Healthy