1. Which of the following is an example of keystone species?
a. Golden apple snails use to lay eggs and destroy water nymphs.
b. Plants that provide food for both humans and animals
c. Janitor fishes invading fishponds.
d. Increasing population of water lilies in rivers.
2.
Which of the following does NOT describes exotic species?
a. Refers to organisms which is not native to that ecosystem.
b. These organisms have been moved by humans to areas outside of their
native ranges.
c. They outcompete the native species for food and habitats.
d. When this species was lost, other species can be affected.
3. Which of the following refers to different kind of places where organisms live
and interactions that bind these organisms together?
a. Species diversity
c. Ecosystem diversity
b. Biodiversity
d. Genetic diversity
4. Branch of science that deals with the study of the classification of the living
things.
a. Ecology
b. Taxonomy
d. Histology
c. Biogeography
5. The highest level in hierarchical taxonomic system, which consists of several
related groups called phyla.
a. Genus
b. Species
c. Family
d. Kingdom​