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When stressed, the body activates the "fight or flight" response, leading to a surge of stress hormones like adrenaline and cortisol. This results in increased heart rate, elevated blood pressure, and rapid breathing. Additionally, muscles may tense up, and digestion can slow down, which can lead to gastrointestinal discomfort. These changes prepare the body to respond to perceived threats but can have negative effects if stress is chronic.
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What conditions does physical change occur in materials?
Physical changes in materials occur when the material undergoes a change in its physical properties without any change in its chemical composition. Examples of conditions that can cause physical changes include changes in temperature, pressure, or exposure to light or electricity. Physical changes can include changes in state (such as melting or freezing), changes in shape or size, or changes in properties (such as conductivity or solubility).
Are all physical changes reversible with examples?
Not all physical changes are reversible because most times when such changes occur parts of the substance is lost to the environment.
What is always involved when physical or chemical changes occur in matter?
When physical changes occur in matter, the substance's state or appearance changes without altering its chemical composition. In contrast, chemical changes involve a modification in the substance's chemical composition, resulting in the formation of new substances.
Which occurs more often on earth physical changes or chemical changes?
Physical changes occur more often on Earth compared to chemical changes. Physical changes involve alterations in the state or appearance of matter without changing its chemical composition. Examples include changes in shape, size, or state of matter (solid, liquid, gas). Chemical changes involve the formation of new substances with different chemical properties.
Why cutting of tree branches is physical change?
Because any chemical changes occur.
What physical changes occur to thermal conductivity?
because atoms expands when temperature increases in result physical changes.
What conditions does physical change occur in materials?
Physical changes in materials occur when the material undergoes a change in its physical properties without any change in its chemical composition. Examples of conditions that can cause physical changes include changes in temperature, pressure, or exposure to light or electricity. Physical changes can include changes in state (such as melting or freezing), changes in shape or size, or changes in properties (such as conductivity or solubility).
When do physical and mental changes occur in humans?
entire lifespan
Physical and mental changes in human beings occur when?
entire lifespan
What physical changes to earth's surface occur at converging boundaries?
mountains
What occurs when the forward and reverse occur at the same rate?
the changes are physical
What are the most common physical changes that occur?
The most common physical changes that occur include changes in muscle mass, bone density, skin elasticity, and metabolism. Additionally, changes in vision, hearing, and hormone levels are also commonly experienced with aging.
Physical changes that occur in teens bodies during puberty are called?
Development.
What are the physical changes that occur during infancy's childhoods adolescences and adulthood?
Development
Would the burning of a house be a physical change?
Mostly chemical, but physical changes also occur, such as when the windows blow out.
What types of changes occur if you were to slice a tomato?
Physical change as it is only changing its physical apparence, not the content of the object
Are sugar from wax created by bees are chemical or physical change?
The process of bees converting nectar into beeswax and then into honey involves both chemical and physical changes. Chemical changes occur during the conversion of nectar into beeswax and honey, while physical changes occur during the shaping, cooling, and solidification of the wax.
