When it is summer in sydney, australia what season is it in montreal, canada? explain your reasoning.

What type of specimens where you able to see under each of the microscopes in the microscope activity

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?

What are the three different shapes or structures shapes or structure of carbon-based molecules?