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TLS Online TPP Program

#Question id: 4961

An early consequence of the release of oxygen gas by plant and bacterial photosynthesis was to

#Unit 11. Evolution and Behavior

  1. make life on land difficult for aerobic organisms.

  2. change the atmosphere from oxidizing to reducing.

  3. make it easier to maintain reduced molecules

  4. cause iron in ocean water and terrestrial rocks to rust (oxidize).

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TLS Online TPP Program

#Question id: 10609

#Unit 10. Ecological Principles

The observation that members of a population are uniformly distributed suggests that
TLS Online TPP Program

#Question id: 11201

#Unit 7. System Physiology – Animal

Why are action potentials usually conducted in one direction?
TLS Online TPP Program

#Question id: 4155

#Unit 3. Fundamental Processes

Of all the possible triplet codons, __ do not code for an amino acid.
TLS Online TPP Program

#Question id: 2623

#Unit 2. Cellular Organization

Combinatorial control is a characteristic feature of ;
TLS Online TPP Program

#Question id: 316

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of these noncovalent forces in biological systems is usually the strongest?