Question 1: [81][82][83] The conservation ethic differs from the preservationist ethic, historically lead by ________, who advocate for protected areas devoid of human exploitation or interference for profit.
Question 4: The most recent, the Cretaceous–Tertiary extinction event, occurred 65 million years ago, and has attracted more attention than all others because it killed the ________.
Question 5: The biodiversity found on Earth today consists of many millions of distinct biological species, which is the product of nearly 3.5 billion years of ________.
Question 7: Use of the term by Thomas Lovejoy in the Foreword to the book[7] credited with launching the field of conservation biology introduced the term along with "________" to the scientific community.
Question 10: [18] Estimates of the present global macroscopic species diversity vary from 2 million to 100 million species, with a best estimate of somewhere near 13–14 million, the vast majority of them ________.