Ecosystems of Oceans and Freshwater: Biological Diversity and Water


Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Why are primary producers important?

Create Your Account To Take This Quiz

As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.

Try it risk-free
Try it risk-free for 30 days. Cancel anytime
Already registered? Log in here for access

1. Which ecosystem is characterized by a photic zone and low biodiversity?

2. Which ecosystem is characterized by high biodiversity and numerous organisms that are nocturnal?

Create your account to access this entire worksheet
A Premium account gives you access to all lesson, practice exams, quizzes & worksheets
Access to all video lessons
Quizzes, practice exams & worksheets
Certificate of Completion
Access to instructors
Create an account to get started Create Account

About This Quiz & Worksheet

The characteristics and health of water-based ecosystems depend heavily on physical factors such as water depth, temperature and movement, and the ecosystem's proximity to land. This quiz/worksheet combo helps you understand how those and other factors shape both ocean and freshwater ecosystems, and the different types of biological communities found in salt and freshwater.

Quiz & Worksheet Goals

In these assessments you'll be tested on:

  • The role of primary producers in aquatic ecosystems
  • Ecosystem with a photic zone and low biodiversity
  • Ecosystems threatened by low levels of oxygen
  • Transient biodiversity in ecosystems

Skills Practiced

This quiz and worksheet lets students practice the following skills:

  • Knowledge application - use your knowledge to explain the different types of ocean and freshwater ecosystems
  • Distinguishing differences - compare and contrast lake and salt marsh ecosystems
  • Information recall - access the knowledge you've gained regarding biodiversity

Additional Learning

To learn more, review the accompanying lesson called Ecosystems of Oceans and Freshwater: Biological Diversity and Water. This lesson covers the following objectives:

  • Know different types of salt and freshwater ecosystems
  • Understand the effect of water depth and sunlight on aquatic ecosystems
  • List the unique features of coral reef ecosystems
  • Understand the factors that affect biodiversity in salt marshes and estuaries
  • Describe the characteristics of lake ecosystems