Answer Key: A Frog Dies…

Lesson Plan: A Frog Dies and a World Vanishes

II. While Reading Activities

Word Inference

  1. species |ˈspēsēzˈspēSHēz| noun (pl.same) -a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g., Homo sapiens.
  2. canopy |ˈkanəpē| noun (pl. canopies)-the uppermost trees or branches of the trees in a forest, forming a more or less continuous layer of foliage: monkeys spend hours every day sitting high in the canopy.
  3. tadpole |ˈtadˌpōl| noun-the tailed aquatic larva of an amphibian (frog, toad, newt, or salamander), breathing through gills and lacking legs until its later stages of development.
  4. breeding |ˈbrēdiNG| noun-the mating and production of offspring by animals: palolo worms use the moon to time their breeding.
  5. persistent |pərˈsist(ə)nt| adjective-continuing firmly or obstinately in a course of action in spite of difficulty or opposition: one of the government’s most persistent critics.
  6. geologic  |ˌjēəˈläjəkəl| (also geologic |ˌjēəˈläjik| )-adjective-relating to the study of the earth’s physical structure and substance: a geological map of the country | the geological history of the earth.
  7. aggressive |əˈɡresiv| adjective-ready or likely to attack or confront; characterized by or resulting from aggression: he’s very uncooperative and aggressive | aggressive behavior.
  8. amphibian|amˈfibēən|noun-(Zoology)a cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, and salamanders. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
  9. demise |dəˈmīz| noun [ in sing. ]  a person’s death: Mr. Grisenthwaite’s tragic demise.
  10. infectious |inˈfekSHəs| adjective- (of a disease or disease-causing organism) likely to be transmitted to people, organisms, etc., through the environment.

Reading Comprehension


Amphibians have shown us that reactive attempts in conservation may be ineffective. Indeed, the demise of so many amphibians was one of our early indications of what many biologists believe is a sixth major extinction now underway.

 Grammar Focus: Prepositions

The males stayed with their tadpoles in small water-filled cavities high in the trees.

In this way, this species was able to perpetuate itself in the only place on the planet it was known to exist.

Our plan was to place them in breeding programs and reintroduce them into the wild after the scourge had passed.

The trajectory of this latest threat is familiar.

Amphibians have shown us that reactive attempts in conservation may be ineffective.