What is anything within an organism that causes it to react?

Anything that causes an organism to react or respond is called a stimulus (plural: stimuli). Stimuli can be external (outside the organism) or internal (inside the organism).

1. What causes an organism to react?
2. How do organisms react to their environment?
3. What is a change in an organism's environment that causes it to react?
4. What is the reaction of an organism to an action or an event called?
5. What is a change within an organism called?
6. What are 3 things organisms need to survive?
7. Why are living organisms important?
8. How do plants and animals respond to changes in their environment?
9. What term describes a change in an organism's outside environment?
10. What is stimulus and response in biology?
11. What is a stimulus example?
12. What is stimulus biology example?
13. What is an example of adaptation?
14. Which statement is an example of Commensalism?
15. What is adaptation short answer?

What causes an organism to react?

A change in an organism's surroundings that causes the organism to react is called a stimulus (plural stimuli). An organism reacts to a stimulus with a response- an action or change in behavior. Another example is if you are cold, you shiver. The cold is the stimulus while the shivering is the response.

How do organisms react to their environment?

Organisms need to detect and respond to changes in their internal and external environment. ... Cells called receptors , which detect stimuli (changes in the environment). The coordination centre, such as the brain, spinal cord or pancreas, which receives and processes information from receptors around the body.

What is a change in an organism's environment that causes it to react?

A change in an organism's surroundings that causes the organism to. react is called a stimulus. An external stimulus comes from outside the organism, while an internal stimulus comes from inside the organism. An organism reacts to a stimulus with a response an action or change in behavior.

What is the reaction of an organism to an action or an event called?

A change in the environment is the stimulus; the reaction of the organism to it is the response.

What is a change within an organism called?

As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. ... Sometimes, a mutation may even cause dramatic changes in the physiology of an affected organism.

What are 3 things organisms need to survive?

Living things need need air, water, food and shelter to survive.

Why are living organisms important?

The most fundamental need of living things is water; without this vital resource, life could not exist. Water is needed for many chemical reactions that take place in cells. It also helps transport nutrients and eliminate waste matter. All organisms need nutrients for energy, growth, and repair.

How do plants and animals respond to changes in their environment?

When some animals (and plants) encounter the impacts of climate change in their environment, they respond by changing behavior and moving to a cooler area, modifying their physical bodies to better deal with the heat, or altering the timing of certain activities to match changes in the seasons.

What term describes a change in an organism's outside environment?

Evolution describes changes in inherited traits of populations through successive generations. ... So it is with ecology: Evolution provides a canon by which we may better understand the interactions of organisms with their environments.

What is stimulus and response in biology?

A Stimulus is any change either internal or external which leads to a response. This could be a noise, smell or the changes in blood sugar level. A Receptor is a specialized cell which can sense the stimulus. ... The Response is what happens when the organism reacts to the stimulus.

What is a stimulus example?

Stimulus: any change in an organism's environment that causes the organism to react. It is a fancy way of saying “cause”. Example: An animal is cold so it moves into the sun.

What is stimulus biology example?

In the context of science, a stimulus is anything that makes an organism or a part of an organism react in some way. For example, for most plants, sunlight acts as a stimulus that causes (stimulates) them to grow or move toward it.

What is an example of adaptation?

Adaptation is the evolutionary process where an organism becomes better suited to its habitat. ... An example is the adaptation of horses' teeth to grinding grass. Grass is their usual food; it wears the teeth down, but horses' teeth continue to grow during life.

Which statement is an example of Commensalism?

Monarch butterflies and milkweed are an example of commensalism. Commensalism is a relationship between two organisms in which one benefits from the other without causing harm to it. The commensal organism obtains food, shelter, locomotion, or support.

What is adaptation short answer?

Adaptation is the evolutionary process where an organism becomes better suited to its habitat. This process takes place over many generations. It is one of the basic phenomena of biology. When people speak about adaptation, they often mean a 'feature' (a trait) which helps an animal or plant survive.