The study involved caterpillars 毛虫 and sparrows麻雀 in the school garden. The study took four weeks.
The observations are recorded in the following table:
1) State the aim of the investigation.
....To investigate the relationship between sources of food and the number of consumers.
2) What is the trend of change in the number of sparrows?
.....Increasing
3) What conclusion can you make based on the observations?
.....As the number of sparrows increases, the number of caterpillars decreases.
4) Predict the number of caterpillars on the 5th week.
....12 caterpillars
