A general term referring to all biostratigraphic units such as range zones and concurrent rangezones:a

cast d. formation
b. mold e. system
c. biozone


C

Environmental & Atmospheric Sciences

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Which of the following is not an example of an age-relationship based on absolute dating?

A) The oldest known rocks on Earth are 3.96 billion years old. B) The Vishnu schist at the bottom of the Grand Canyon is 2 billion years old. C) The dinosaurs became extinct 65 million years ago. D) The Coconino formation in the Grand Canyon is older than the Kaibab formation.

Environmental & Atmospheric Sciences

A bird on a high-voltage wire isn't shocked because

A. of low conductivity. B. of high insulation. C. of high resistance between its feet. D. none of the above

Environmental & Atmospheric Sciences

Which of the following is an example of an abiotic factor?

A. the interactions between different species in a community B. the diversity of prey and predator species in a community C. the climate of the community in which the species mentioned above inhabit D. the number of individuals of a particular species living in a community

Environmental & Atmospheric Sciences

How do keystone species differ from indicator species?

What will be an ideal response?

Environmental & Atmospheric Sciences