Levels of Organization
A living thing that can carry out life processes on its own.
What is an organism?
The plant organ where photosynthesis mostly happens.
What is a leaf?
The system that breaks down food into nutrients the body can use.
What is the digestive system?
The system that collects and processes information from the body and environment.
What is the nervous system?
Eating food for energy uses which system first?
What is the digestive system?
A group of similar cells that work together to do the same job.
What is tissue?
The plant organ that absorbs water and nutrients from the soil.
What are roots?
The system that removes waste from the body.
What is the excretory system?
Specialized cells that detect changes in the environment.
What are sensory receptors?
You sprint to catch the bus—what system helps you move?
What is the muscular system?
A body part made of different tissues working together, like the heart.
What is an organ?
The plant organ that transports nutrients and supports the plant.
What is the stem?
The system responsible for breathing in oxygen and releasing carbon dioxide.
What is the respiratory system?
The actions an organism takes in response to stimuli.
What is behavior?
You breathe faster after running—what system is responsible?
What is the respiratory system?
A group of organs working together to perform a major body function.
What is an organ system?
Which plant organ would be most affected if a plant cannot get water?
What are the roots?
The system that moves oxygen, nutrients, and water throughout the body.
What is the circulatory system?
Information stored in the brain that helps organisms learn.
What is memory?
Your kidneys remove waste from the blood—what system is this?
What is the excretory system?
Put these in order from simplest to most complex: organ, cell, tissue, organism.
What is cell → tissue → organ → organism?
Which two plant organs work together to move water and nutrients?
What are the roots and stem?
The system that provides both internal and external movement.
What is the muscular system?
Which system works most closely with sensory receptors to respond quickly?
What is the nervous system?
Your heart pumps faster during exercise—what system is at work?
What is the circulatory system?