Environmental Trait Influences - 3rd Grade Science
Card 1 of 15
Which environmental condition most directly affects a cactus having thick stems for storing water?
Which environmental condition most directly affects a cactus having thick stems for storing water?
Tap to reveal answer
Dry conditions with little water. Desert plants evolved thick stems to store scarce water.
Dry conditions with little water. Desert plants evolved thick stems to store scarce water.
← Didn't Know|Knew It →
Identify the trait most likely influenced by practice: strong arm muscles or finger number.
Identify the trait most likely influenced by practice: strong arm muscles or finger number.
Tap to reveal answer
Strong arm muscles. Exercise builds muscle; finger count is genetically fixed.
Strong arm muscles. Exercise builds muscle; finger count is genetically fixed.
← Didn't Know|Knew It →
Which option is a learned behavior: building a web or riding a bicycle?
Which option is a learned behavior: building a web or riding a bicycle?
Tap to reveal answer
Riding a bicycle. Humans must learn and practice this skill; spiders build webs by instinct.
Riding a bicycle. Humans must learn and practice this skill; spiders build webs by instinct.
← Didn't Know|Knew It →
Identify the environmental condition that can cause a person to get a suntan.
Identify the environmental condition that can cause a person to get a suntan.
Tap to reveal answer
Sunlight (UV light). UV rays trigger melanin production, darkening skin temporarily.
Sunlight (UV light). UV rays trigger melanin production, darkening skin temporarily.
← Didn't Know|Knew It →
Which trait is most influenced by diet: a person’s height growth or blood type?
Which trait is most influenced by diet: a person’s height growth or blood type?
Tap to reveal answer
A person’s height growth. Nutrition affects growth; blood type is genetically fixed.
A person’s height growth. Nutrition affects growth; blood type is genetically fixed.
← Didn't Know|Knew It →
Which option is an acquired trait: a scar from an injury or eye color?
Which option is an acquired trait: a scar from an injury or eye color?
Tap to reveal answer
A scar from an injury. Scars form from damage during life, not inherited from parents.
A scar from an injury. Scars form from damage during life, not inherited from parents.
← Didn't Know|Knew It →
Which option is an inherited trait: learned song in a bird or fur color in a rabbit?
Which option is an inherited trait: learned song in a bird or fur color in a rabbit?
Tap to reveal answer
Fur color in a rabbit. Fur color is determined by genes passed from parents, not learned.
Fur color in a rabbit. Fur color is determined by genes passed from parents, not learned.
← Didn't Know|Knew It →
What is a trait influenced by environmental conditions (not inherited from parents)?
What is a trait influenced by environmental conditions (not inherited from parents)?
Tap to reveal answer
An acquired trait. Develops during life due to experiences, not passed from parents.
An acquired trait. Develops during life due to experiences, not passed from parents.
← Didn't Know|Knew It →
What is an environmental condition that can influence how an organism looks or acts?
What is an environmental condition that can influence how an organism looks or acts?
Tap to reveal answer
A feature of the surroundings, such as temperature, light, or water. These external factors can change how organisms develop and behave.
A feature of the surroundings, such as temperature, light, or water. These external factors can change how organisms develop and behave.
← Didn't Know|Knew It →
What is the name for a behavior learned from the environment, such as a dog learning to sit?
What is the name for a behavior learned from the environment, such as a dog learning to sit?
Tap to reveal answer
A learned behavior. Animals acquire these skills through practice and experience.
A learned behavior. Animals acquire these skills through practice and experience.
← Didn't Know|Knew It →
Which option is most influenced by environment: a plant’s leaf size or its species type?
Which option is most influenced by environment: a plant’s leaf size or its species type?
Tap to reveal answer
A plant’s leaf size. Leaf size varies with water and light; species is genetically fixed.
A plant’s leaf size. Leaf size varies with water and light; species is genetically fixed.
← Didn't Know|Knew It →
What is the best evidence that a trait is influenced by environment rather than inherited?
What is the best evidence that a trait is influenced by environment rather than inherited?
Tap to reveal answer
It changes with conditions such as food, light, temperature, or practice. Environmental traits vary with conditions, unlike fixed inherited traits.
It changes with conditions such as food, light, temperature, or practice. Environmental traits vary with conditions, unlike fixed inherited traits.
← Didn't Know|Knew It →
Which option is influenced by environment: speaking a language or having attached earlobes?
Which option is influenced by environment: speaking a language or having attached earlobes?
Tap to reveal answer
Speaking a language. Language is learned from others; earlobe shape is inherited.
Speaking a language. Language is learned from others; earlobe shape is inherited.
← Didn't Know|Knew It →
Identify the environmental factor that most directly changes a plant bending toward a window.
Identify the environmental factor that most directly changes a plant bending toward a window.
Tap to reveal answer
Light. Plants grow toward light sources through phototropism.
Light. Plants grow toward light sources through phototropism.
← Didn't Know|Knew It →
What environmental factor most directly affects how well a plant grows tall and green?
What environmental factor most directly affects how well a plant grows tall and green?
Tap to reveal answer
Amount of water and sunlight. Plants need these resources for photosynthesis and healthy growth.
Amount of water and sunlight. Plants need these resources for photosynthesis and healthy growth.
← Didn't Know|Knew It →