2. Catalase is an enzyme present in both animal and plant cells. It helps in breaking down of Hydrogen peroxide (toxic waste, produced as a result of cellular metabolism) and releases water and oxygen bubbles as a product, see the reaction below. An investigation was carried out to see the effect of pH on catalase. The rate of reaction can be measured by the amount of time it takes to collect 10cm3 of oxygen.

Formulate a hypothesis for this experiment.

Formulate a research question for this experiment.

Identify the variables (IV, DV, CV) for this experiment.

Suggest a weakness and an improvement for this design.

Suggest an extension to this investigation.

Which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a. doing door-to-door sellingb. using billboards to advertise the productsc. making online shopping services availabled. giving discounts on products

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Adoença vitiligo afeta qual doença do corpo?