Experimental Scenario Maggie read that some plants grow better if the soil is acidic. So Maggie decides to test and see if the plants
she has will grow better when acid is added to the soil. She puts the same potting soil and two geraniums
that are about the same size into pots. She puts the pots in the same location outside so that they both get
the same sunlight each day, are at the same temperature and she makes sure that they get the same
amount of water. However, Maggie puts a tablespoon of vinegar in the water she gives to plant A. She
measures the growth of the plants every week for five weeks and records the results:
I
Question 1
Using the scenario above identify the :
1. Independent Variable:
2. Dependent Variable:

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.