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TLS Online TPP Program

#Question id: 8926

Sponges and cnidarians are among the fossilized animals found in both the Ediacara Hills and the Burgess Shale from the Rocky Mountains of British Colombia. This observation requires that

#Section 2: Evolution
  1. ancestral sponges and cnidarians had formerly been terrestrial animals.
  2. North America and Australia were united to each other about 550 million years ago (mya).
  3. land that now comprises the Ediacara Hills and the Rocky Mountains was underwater about 550 million years ago.
  4. only sponges and cnidarians existed at the time the sediments were deposited.
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TLS Online TPP Program

#Question id: 16881

#Section 3: Mathematics and Quantitative Ecology

Null and alternative hypotheses are statements about:
TLS Online TPP Program

#Question id: 4622

#Section 2: Evolution

 Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes), was Cuvierʹs attempt to explain the existence of
TLS Online TPP Program

#Question id: 10671

#Section 1: Ecology

The principle of competitive exclusion states that
TLS Online TPP Program

#Question id: 10647

#Section 1: Ecology

Use the graph to answer the following question


In the figure, which of the following survivorship curves implies that an animal may lay many eggs, of which a regular number die each year on a logarithmic scale?
TLS Online TPP Program

#Question id: 11174

#Section 1: Ecology

Why might a peahen choose to mate with a peacock with a long, gaudy tail?