ACTIVITY 4.What is the importance of biodiversity to

ecosystems?

UNIT 4 MODULE 1: BIODIVERSITY

After performing this activity, you should be able to: 

1.differentiate low from high biodiversity,2. give advantages of high over low

biodiversity,3. identify ecosystems with low and high

biodiversity, and4. predict what will happen to an ecosystem

with low biodiversity.

Objectives

2 kids.nationalgeographic.com

Materials Needed: photos of different ecosystems pencil/ballpen

Q69. Which ecosystem/s have high biodiversity? Low biodiversity?

1 Photo by Rodolfo S. Treyes

3 Photo by MD Sebastian

4 Source: Philippines. Department of Education. (2009). Science and Technology II. Textbook (Rev. ed.). Pasig City: Instructional Materials Development Corporation. p. 337)

5 Photo by MD Sebastian 6 Photo by MD Sebastian

(7 and 8 Adapted from: Philippines. Department of Education. (2009). Science and Technology II. Textbook (Rev. ed.). Pasig City: Instructional Materials Development Corporation. p. 335)

9 Photo by Jun Obille

10 (Source: Philippines. Department of Education. (2009). Science and Technology II. Textbook (Rev. ed.). Pasig City: Instructional Materials Development Corporation. p. 338)

11 Photo by Rodolfo S. Treyes

12 Photo by MD Sebastian

Study the photo below.

Photo by MD Sebastian

Q70. Does it have a high or low biodiversity?

Q71. What will happen if a pest will attack banana plants?

Q72. What will happen if a strong typhoon comes and heavy flooding occurs?

Q73. How will this affect the helpers and owner of the plantation?

Examine the photo below.

Source: Gary Williams, California Academy of Science

Q74. What biotic components are present in this ecosystem?

Q75. Describe some relationships and interactions that occur among these biotic components.

Q76. Predict the effect of the presence of many crown of thorns sea star to the ecosystem and its biotic components.

Q77. Why is high biodiversity advantageous over low biodiversity?

Q78. What is the importance of biodiversity to ecosystems? “The Philippines has the 2nd lowest forest coverage in Southeast Asia and 40 % of its coral reef area is in poor condition; while Philippine biodiversity is considered as one of the richest in the world, it is also one of the most threatened.”

- DENR Undersecretary Demetrio Ignacio, Earth Day 22 April 2013

Thank you!

“Teachers are most effective when they are

focused on the needs of those they are teaching instead of

on themselves.”

Happy Earth Day!!22 April