The term insecure laboratory procedures in the definition of the bio-hazard presented in the educational module refers to the "safe pipetting and other work done".
Explanation:
The "insecure laboratory procedure" tells us about the "safe pipetting and miscellaneous work practices" in the bio-hazard risk management as any mistake or wrong application may lead to some wrong chemical reaction which will cause huge damage or any side effect. Hence, safe pipetting or safe handling while working with bio hazards are necessary. Proper disposal, proper disinfectant and proper clean up are necessary. Proper care should be taken to avoid the contact of chemicals during pipetting.
Scientist use fossils to study body structures and compare them. Scientist use location to study location to see how organisms used their features to cross water or survive in different temperatures.
Cell division is the mechanism by which DNA is passed from one generation of cells to the next and ultimately, from parent organisms to their offspring. During meiosis, the cells needed for sexual reproduction divide to produce new cells called gametes.