Vocabulary
A living thing made of many cells.
Multicellular organism
What is the lowest level of organization in a multicellular organism?
A cell
Which body system removes waste that the body does not need?
The excretory system
What are the two major systems found in plants?
The root system and the shoot system
Which body system do sense receptors belong to?
The nervous system
A living thing made of only one cell.
Unicellular organism
What are groups of specialized cells that work together called?
Tissue
Which two body systems work together to help an animal move?
The muscular and skeletal systems
Name three organs found in animals.
Accept three: brain, heart, lungs, liver, stomach, or kidneys
Where in the body would you find sense receptors?
In the eyes, ears, nose, tongue, and skin
Plant tissue that carries water and dissolved nutrients upward from the roots.
Xylem
What is formed when different tissues work together to perform a specific function?
An organ
Which animal body system uses the brain, spinal cord, and nerves to send messages throughout the body?
The nervous system
Name three organs or structures found in plants.
Accept three: roots, stems, leaves, flowers, or pistils
Which body system works with the digestive system to get nutrients to the rest of the body?
The circulatory system
Tube-like structures that carry blood throughout an organism.
Blood vessels
What is formed when organs and tissues work together to perform a major function?
A system or organ system
What type of doctor specializes in the digestive system?
A gastroenterologist
How are veins in plants and animals similar, and how are they different?
Both transport materials. Plant veins carry water and nutrients, while animal veins carry blood.
Explain how body systems work together to get oxygen into and around the body.
The respiratory system brings oxygen into the lungs, and the circulatory system carries it throughout the body.
Specialized cells that detect sound, light, taste, touch, and smell.
Sense receptors
Put the levels of organization in order from smallest to largest.
Cells → tissues → organs → systems → organism
Explain how the nervous, muscular, and skeletal systems work together when an animal moves.
The nervous system sends signals, the muscles contract, and the muscles pull on bones to create movement.
How do plants and animals get energy differently?
Plants use sunlight to make food, while animals must eat food to get energy.
How do the digestive and circulatory systems work together?
The digestive system breaks food into nutrients, and the circulatory system carries those nutrients to cells throughout the body.