Question

students are investigating living and nonliving organisms. the students observe objects that are found in a fish tank. they view each object with their eyes and then view a small sample from each object under a microscope. the picture shows the fish tank and their observations. object viewable without microscope? cells present under microscope? gravel yes no fish yes yes bacteria no yes rock yes no plastic coral yes no plants yes yes does the object move? is the object made of cells? does the object contain a nucleus? is the object visible without a microscope? clear all

Explanation:

Step1: Recall the characteristics of living organisms

Living organisms are made of cells. Non - living objects are not made of cells.

Step2: Analyze the table data

Fish and plants have cells present under the microscope, so they are living. Gravel, rock, and plastic coral do not have cells present under the microscope, so they are non - living. Bacteria are living organisms but are not visible without a microscope.

Answer:

The living organisms in the fish tank are fish, plants, and bacteria. The non - living objects are gravel, rock, and plastic coral.