Key Ideas Video: Organization in Plants and Animals

Which of the following best describes the term hierarchy in relation to the levels of organization in plants and animals?

• The random arrangement of cells in an organism

• The way organisms group together in an ecosystem

• The organized structure of biological levels from simplest to most complex

• The movement of energy through a food chain

What is the smallest unit of life in animals?

• Organ

• Organ System

• Tissue

• Cell

What are tissues made up of?

• Organs that work together

• Groups of similar cells that perform a specific function

• Different types of cells randomly arranged

• Organ systems that help the body function

Plants have the same levels of organization as animals.​ (a)  

• True
• False

What is the main difference between plant and animal cells?

• Animal cells have cell walls

• Plant cells are hard and rigid

• Animal cells have a large water sack

• Plant cells are soft and flexible

Which plant organ is part of the shoot system?

• Stem

• Leaf

• Flower

• Root

What is homeostasis?

• The growth of plant roots

• The balance of water, carbon dioxide, and oxygen

• The process of building tissues

• The creation of new cells