| Question Answer | What are two internal factors that organisms respond to? body temp and hormone levels | Give two examples from the reading of how living things respond to changes in their environment. Pupils constricting in the sun and sweating to cool your body temp |
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What are two examples of internal factors to which organisms respond?
what are two internal factors that organisms respond to? body temperature and hormone levels .
What are 3 ways organisms respond to their environment?
Living organisms have some senses ( sight, smell, touch, taste , etc.) that can help them to detect changes in their external environment, as well as their internal balance and respond to them.
What are internal ways an organism responds to the environment?
Animal Responses to Internal Stimuli
Internal stimuli cause responses to protect an animal and maintain homeostasis . Thirst and hunger are biological responses to lack of water and food. Some responses to internal stimuli protect the animal from serious illness.
How do organisms react to outside factors?
Organisms respond to external factors in ways that maintain homeostasis . For example, when the temperature around you becomes very warm, you sweat. This is a response to the external factor of heat, and it helps your body maintain a stable internal temperature. ...
What is an example of responding to your environment?
A dog salivating at the smell of food, a flower opening in sunlight and a worm crawling towards moisture are examples of organisms responding to stimuli from their surroundings. All organisms respond to their surroundings in order to improve their chances of survival and reproduction.
What are some examples of stimulus and response?
- You are hungry so you eat some food.
- A rabbit gets scared so it runs away.
- You are cold so you put on a jacket.
- A dog is hot so lies in the shade.
- It starts raining so you take out an umbrella.
How do all organisms begin life?
All organisms begin life as a single cell . ... Some organisms begin life as a single cell and others as multi-cellular.
What is the smallest level at which life exists?
The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life. Some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.
What is another term for living thing?
Synonyms: organism ; life form; creature.
What is an example of internal stimulus?
As the name implies, the internal stimulus comes from within the organism. For example one of the internal stimuli is hunger which is the sign of low energy in the body. It stimulates us to eat something to regain the needed energy.
Do all living things maintain stable internal conditions?
Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive.
Why do all living things grow and develop?
Most living things need oxygen, water and food to grow. ... Other living things eat plants or other animals for food. The cells of living things divide , allowing the living things to grow bigger and to change as they grow. The cells divide to form new cells that are different from the original cells.
What are two distinct ways an organism can respond to changes in the environment?
Organisms respond to diverse stimuli. For example, plants can bend toward a source of light, climb on fences and walls , or respond to touch (Figure 2). Even tiny bacteria can move toward or away from chemicals (a process called chemotaxis) or light (phototaxis).
How does changing an external stimulus affect how an organism will respond?
Organisms respond to external stimuli to maintain homeostasis . Every organism has its own range of tolerance. When an environmental condition (such as temperature) goes above or below an organism’s optimal range, the organism experiences stress and responds to the stimulus.
How do organisms obtain the necessities to live?
In order to survive, all living things need air, water, and food. Animals obtain their food from plants and other animals , which provides them with the energy they need to move and grow. An animal’s home (habitat) must provide these basic needs (air, water and food) along with shelter from bad weather and predators.
