
Year 9 Biology 2023 Revision
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Easy
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15 questions
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1.
FLASHCARD QUESTION
Front
What is homeostasis?
Back
Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.
2.
FLASHCARD QUESTION
Front
Which organisms use homeostasis?
Back
All living things, including plants and animals, use homeostasis.
3.
FLASHCARD QUESTION
Front
What is the function of enzymes in biological processes?
Back
Enzymes speed up chemical reactions in the body.
4.
FLASHCARD QUESTION
Front
What happens to enzymes at high temperatures?
Back
Enzymes can denature, losing their shape and function when exposed to high temperatures.
5.
FLASHCARD QUESTION
Front
What are receptors?
Back
Receptors are specialized cells or proteins that detect stimuli and send signals to the nervous system.
6.
FLASHCARD QUESTION
Front
What is a stimulus?
Back
A stimulus is anything that causes a response in an organism.
7.
FLASHCARD QUESTION
Front
What is the role of the sensory system?
Back
The sensory system allows organisms to perceive and respond to their environment through senses like sight, sound, and touch.
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