Carboniferous - First reptile

TLS Online TPP Program

#Id: 8003

#Unit 10. Ecological Principles

Ecological envelope - The range of ecological conditions that are predicted to be suitable for a species.

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#Id: 9382

#Unit 11. Evolution and Behavior

The latency between a dog encountering a painful stimulus with its leg and showing the flexion reflex in which, it withdraws its leg usually lies between 60 and 200 ms

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#Id: 4478

#Unit 13. Methods in Biology

DIC microscopy easily defines the outlines of large organelles, such as the nucleus and vacuole.

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#Id: 4015

#Unit 7. System Physiology – Animal

Between heartbeats, influx of positively charged sodium ions causes a slow rise in the resting membrane potential in the positive direction. 

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#Id: 2985

#Unit 3. Fundamental Processes

A comprehensive series of such temperature-sensitive mutants in Escherichia coli identifies a set of loci called the dna genes. The dna mutants distinguish two stages of replication by their behavior when the temperature is raised

The members of the major class of quick-stop mutants cease replication immediately upon a temperature increase.

The members of the smaller class of slow-stop mutants complete the current round of replication, but cannot start another.