Exploring Levels of Organization in Multicellular Organisms

Who were the three German scientists that contributed to the development of cell theory?

• Robert Hooke, Anton van Leeuwenhoek, Matthias Schleiden

• Matthias Schleiden, Theodor Schwann, Rudolf Virchow

• Theodor Schwann, Rudolf Virchow, Robert Hooke

• Anton van Leeuwenhoek, Rudolf Virchow, Theodor Schwann

What is the basic unit of structure and function in all living things?

• Organs

• Organ Systems

• Tissues

• Cells

Who was the first person to observe living cells?

• Robert Hooke

• Matthias Schleiden

• Anton van Leeuwenhoek

• Rudolf Virchow

Which type of tissue is responsible for transmitting electrical signals in the body?

• Muscle tissue

• Nerve tissue

• Epithelial tissue

• Connective tissue

What type of tissue is found in ligaments and tendons?

• Connective tissue

• Epithelial tissue

• Muscle tissue

• Nerve tissue

How many different organs are there in the human body?

• 120

• 100

• 78

• 50

Which organ system is responsible for circulating blood through the body?

• Circulatory system

• Digestive system

• Skeletal system

• Respiratory system

What is the term for maintaining a stable internal environment in an organism?

• Respiration

• Photosynthesis

• Metabolism

• Homeostasis

Which of the following is a unicellular organism?

• Animals

• Protists

• Plants

• Fungi

What are extremophiles?

• Bacteria that live in extreme conditions

• Plants that grow in deserts

• Fungi that decompose organic matter

• Animals that live in the Arctic