bio

Question 1

What are the fundamental units of life?

Answer 1

Cells

Cells are comparable to atoms in chemistry.

Question 2

What types of organisms are composed of cells?

Answer 2

All living organisms

Includes single-celled and multicellular organisms.

Question 3

What is an example of a single-celled organism?

Answer 3

Paramecium

A eukaryote found in pond water.

Question 4

What do multicellular organisms consist of?

Answer 4

Specialized cells

These cells work together and depend on each other for survival.

Question 5

What function do muscle cells perform?

Answer 5

Enable movement

Example: Eye movement while reading.

Question 6

What is the role of nerve cells?

Answer 6

Transmit signals

Example: Processing words on a page and sending signals to the brain.

Question 7

What do brain cells (neurons) do?

Answer 7

Form connections for memory and learning

Neurons are essential for cognitive functions.

Question 8

How are cells characterized in the biological hierarchy?

Answer 8

As the simplest structures qualifying as living entities

Cells are the basic unit of structure and function.

Question 9

What is the evolutionary connection between cells?

Answer 9

All cells descend from earlier cells

This indicates a common cellular ancestry.

Question 10

What has led to the diversity of life forms?

Answer 10

Modifications and adaptations of cells over time

Despite differences, all cells share common features.

Question 11

True or False: All cells share certain common features that define them as living systems.

Answer 11

True

This is a fundamental characteristic of all cells.