Respond to the Environment — Characteristics of Life
Read this topicExplanations 4
- What Is a Stimulus? Living things respond to stimuli from their environment. A stimulus is anything that causes a response. If the stimulus signal is coming from the environment…
By Deena Hauze, Alex Federspiel, Mario Janakis
- What's a Stimulus? All living things must be able to respond to what's going on around them. Anything that causes an organism to react or respond is called a stimulus (plural: s…
By Hannah Bonville, Alex Federspiel, Deena Hauze, Mario Janakis
- Why Do Living Things Need to Respond to the Environment? If you're like me, you might get extremely nervous before taking a test. My heart starts to beat faster, I get jittery, …
By Gabi Slizewska, Mario Janakis
- (Video) Response to External Environments by Bozeman Science Here, Mr. Andersen explains why and how organisms react to their environment. He also gives some examples of behavio…
By Valeri Natole, Mario Janakis, Caroline K
Problems 20
- You're running from a bear and have a huge adrenaline rush. What kind of stimulus is this?
- Which of the following is an internal stimulus?
- Using the information provided above, determine which stimulus below is most likely to cause a snake to leave its burrow and lie on a rock.
- There are many microscopic organisms that float in the depths of the oceans that do not respond to any form of external stimuli. Why are they still considered alive.
- What external stimulus is most likely to change an autotrophs direction of growth?
- A wolf starts feeling hungry and goes to hunt for food. A rabbit in the area hears the wolf nearby and quickly leaves. What is the internal stimulus in this example?
- Which of the following could be considered a response to an external stimulus? Check all that apply.
- Plants orient themselves toward a light stimulus. This is called phototropism. What characteristic of life does this best show?
- After laying on the beach in the hot sun, you start to sweat. This is your body responding to the environment. Which characteristics of life is shown by this response?
- Which of these is an external stimulus?
- Which of these are responses to internal stimuli?
- Tulips sense that the temperature outside has become very warm, and so they open up their petals. This is an example of a response to a/an ______________________ stimulus.
- A kitten wants to fit into a tiny box, but while sniffing inside the box his whiskers get squished against the sides of the box. The kitten knows that if his whiskers can't fit,…
- Which of these does NOT respond to its environment? Picture Credits: By William Warby from London, England CC BY 2.0, via Wikimedia Commons By Michael Rivera (Own work) CC BY-SA…
- Which from the list are characteristics that a multicellular organism MUST have?
- You hear a sound and turn your head toward it. This is an example of responding to a/an _______________ stimulus.
- Which of these is true?
- Your stomach rumbles and you feel hungry, so you go grab a snack from the fridge. This is an example of responding to a/an ______________________ stimulus.
- Which of these are responses to external stimuli?
- Some chameleons actually change colors to respond to environmental temperature. If a chameleon gets cold, it might change to a darker color to absorb more heat. Or if it gets ho…