Biology Module 2: Organisation of Living Things

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What is the main difference between vascular and non-vascular plants?

Non-vascular plants have more complex tissues than vascular plants

Vascular plants absorb water directly through their cell walls

Vascular plants are simpler than non-vascular plants

Vascular plants have specialized tissue for transporting water and nutrients (correct)

What is the main function of epithelial tissue?

To produce hormones and enzymes

To provide support and protection

To absorb water and nutrients

To cover body surfaces and protect organs (correct)

What is the main component of connective tissue?

Muscle cells and nerve cells

Blood vessels and epithelial cells

Collagen and elastin fibers (correct)

Bone cells and cartilage

What is the main function of the root system in plants?

To absorb water and nutrients Signup and view all the answers

What is the main function of the shoot system in plants?

To produce flowers and fruits Signup and view all the answers

What is the main characteristic of multicellular organisms?

They have specialized cells that carry out different roles Signup and view all the answers

What is the main function of the xylem in vascular plants?

To absorb water and minerals Signup and view all the answers

What is the main characteristic of stem cells?

They can differentiate into different cell types Signup and view all the answers

What is a characteristic of multicellular organisms?

They are more energy efficient than unicellular organisms. Signup and view all the answers

What is an advantage of multicellularity?

It allows for greater biological complexity. Signup and view all the answers

What is a characteristic of unicellular organisms?

They are always smaller than multicellular organisms. Signup and view all the answers

What is a disadvantage of unicellular organisms?

They have a limited ability to adapt to environments. Signup and view all the answers

What is a characteristic of colonies?

They are made up of individual organisms that work together. Signup and view all the answers

What is a difference between unicellular and multicellular organisms?

Multicellular organisms are more energy efficient than unicellular organisms. Signup and view all the answers

What is an advantage of colonial organisms?

They are able to adapt to different environments. Signup and view all the answers

What is a characteristic of unicellular and colonial organisms?

They are less complex than multicellular organisms. Signup and view all the answers

What is the function of the nervous tissue?

Sending and receiving messages around the body Signup and view all the answers

What type of muscle cells are found in the heart?

Cardiac muscle cells Signup and view all the answers

What is the function of actin and myosin in muscle cells?

To make the cells lengthen and shorten Signup and view all the answers

What is the main difference between autotrophs and heterotrophs?

Autotrophs produce their own organic nutrients Signup and view all the answers

What is the process by which autotrophic organisms convert inorganic compounds into organic compounds?

Carbon fixation Signup and view all the answers

What is the function of the filter feeding collars in colonial organisms?

To filter small organisms from water Signup and view all the answers

What type of autotrophs are responsible for converting inorganic compounds into organic compounds?

Prokaryotic organisms Signup and view all the answers

How do heterotrophs obtain their nutrients?

By taking in all required nutrients from external sources Signup and view all the answers

What is the significance of the main feeding cavity in multicellular organisms?

To facilitate feeding in multicellular organisms Signup and view all the answers

What is the function of the oral groove or gullet in unicellular heterotrophs?

To engulf food particles Signup and view all the answers

Which type of organisms are fungi and animals classified as?

Heterotrophs Signup and view all the answers

What is the function of enzymes in saprotrophic organisms?

To break down organic material Signup and view all the answers

What is the primary function of the respiratory system in animals?

To exchange gases between the organism and its environment Signup and view all the answers

What is a characteristic shared by all gas exchange structures?

Large surface area Signup and view all the answers

What is the significance of the tracheal system in insects?

To facilitate gas exchange Signup and view all the answers

Why do terrestrial animal respiratory systems tend to be internal?

To reduce the loss of water from the surface of organs Signup and view all the answers