The tool most effective at monitoring the anaerobic conditions caused by sudden spikes in the population of algae in a lake is the A) rain gauge. B) Secchi disc. C) thermometer. D) dissolved oxygen meter.

Which of these best describes what occurs during cytokinesis? a) the chromosomes are separated b) the cell begins to divide by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm

Is there any solid scientific evidence that humans have been cloned?

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.