D: Living Systems Flashcards
What are organisms?
Living things that respond to stimuli, including plants, humans, and other animals.
Name three ways organisms can be classified.
- Appearance
- Habitat
- Structures
What are structures in organisms?
Features that serve a purpose or function.
Give examples of external structures in plants.
- Roots
- Stems
- Leaves
- Flowers
- Fruit
Give examples of external structures in animals.
- Claws
- Teeth
- Legs
- Shells
- Skins
What are some functions of external structures in organisms?
- Eating
- Moving
- Protecting
- Sensing
- Reproducing
True or False: All organisms have the same external structures.
False
Fill in the blank: A variety of organisms live on Earth and have external structures that support various _______.
[functions]
What can plants detect?
Sensory stimuli such as light, gravity, temperature, and touch
These sensory detections help plants grow and survive.
List the sensory organs of animals.
- Ears
- Eyes
- Nose
- Tongue
- Skin
These organs help animals meet their needs.
How do sensory organs in animals assist them?
By detecting food, other animals, danger, and temperature
This detection supports their survival.
True or False: Organisms do not sense their environments.
False
Organisms sense and respond to their environments to support growth and survival.
Fill in the blank: Plants can detect _______ stimuli.
[sensory]
Fill in the blank: Sensory organs in animals help them detect _______ and other stimuli.
[food]
What is the primary purpose of organisms sensing their environments?
To support growth and survival
This is essential for adapting to changing conditions.
