1. Mrs. Johanna Fabre
Science
9th grade
Logos Academy

2.  Scientists point out 3 ways of flora beginings in
Galapagos Islands:
Vegetation rafts travelled through
rivers
Spores and seeds transported by the wind
Seeds stuck on migrating birds

3.  The islands have only 800 species, due to the difficult
conditions to adapt.
 The plants used mechanisms of natural selection and
evolution:
Insular giantism
Xeromorphism
Endemic flora varies form island to island. 32% of the
islands plants are endemic.
Wild tomato, Lava cacti, palo santo, Darwin’s cotton , are
some of them.

5.  Sea lions and penguins came from the Antartids
through Humboldt current.
 Tortoises have adapted to each island, their shells are
different.
 Marine life has the largest number of species brought
by the 4 currents of the Pacific ocean.

7.  Critical thinking:
 Write on your notebook 3 situations you think may
harm the endemic species of Galapagos islands.

8.  Anthropological activity:
 Plants introduction
 Animals introduction
 Internal migration
 Tourism
 Industrial fishing
Now compare!

9.  Now, explain in your own words why these threats
affect the biodiversity of the islands.

10. Vocabulary
Write on your notebook what you understand by the
following terms:
• Xeromorphism
• Erosion
• Endemism
• Weathering

11. Answer the following questions on your
notebook.
What are the two most important things
about the Galapagos Islands?
What might be done to help protect the
island’s special animal and places? List at
least 2 things.
Classwork #4

12.  Paste pictures of the islands’ animals and write their
name next to it picture.