Question

A researcher who wants to know how many tree seedlings are in a 1-hectare site counts the number of seedlings within five 2-square-meter subplots and then calculates the average. This method of determining the number of individuals in an area is known as a

a. census.
b. survey.
c. tally.
d. count.

Answer 1

The method of determining the number of individuals in an area by counting the number of seedlings within subplots and calculating the average is known as census. For immobile organisms such as plants, a square structure called a quadrat can be used to count the number of individuals within its boundaries. The correct option is a.

Step-by-step explanation:

The method of determining the number of individuals in an area by counting the number of seedlings within subplots and calculating the average is known as census. F

or immobile organisms such as plants, a square structure called a quadrat can be used to count the number of individuals within its boundaries.

Multiple quadrat samples are performed at random locations within the habitat to estimate the population size and density within the entire habitat. The correct option is a.