AqSci Fall Final Review 20-21 Pt.1

True/False

Sunlight availability, oxygen content, salinity, and water temperature are all examples of abiotic factors in an aquatic ecosystem.

• True

• False

True/False

A pipe leaks raw sewage into a river, polluting water downstream. The pipe represents non-point source pollution.

• True

• False

True or False.

Hydrophytes are salt-loving plants.

• True

• False

True/False

Emergent plants are plants with roots that are underwater & steams/leaves that are above water.

• True

• False

True or False.

90% of Texas’ salt and freshwater fish species depend on wetlands for food, spawning, and nursery grounds.

• True

• False

The jawless hagfish belongs to the class Agnatha.

• true

• false

True/False

85% of fish use their pectoral fins and 15% use their tail/caudal fin for swimming power.

• True

• False

Which process is used in sewage treatment to kill infectious bacteria?

• Sedimentation

• Filtration

• Chlorination

• Floatation

Which letter represents the lemnetic zone?

• A

• B

• G

• H

Which letter represents the littoral zone?

• A

• B

• G

• H