Living creatures respond to internal stimuli, like hunger or pain, and external stimuli, like temperature or light. Responses involve behavioral changes or physiological adjustments to maintain homeostasis and ensure survival.
Category: Class 6 Science
NCERT Solutions and Important Questions for class 6 Science for CBSE exams 2020-2021.
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The mantle is responsible for secreting the shell in snails. It produces calcium carbonate, which forms the shell’s layers, and continuously adds material to accommodate the snail’s growth and provide protection.
Living organisms adapt to environmental changes through behavioral adjustments, physiological changes, or evolutionary processes. These adaptations help them survive by optimizing their responses to new conditions and challenges.
Cellular differentiation is significant because it allows cells to develop specialized functions and structures. This process is crucial for forming tissues and organs, enabling complex organisms to perform diverse and specific functions.
Feedback systems regulate temperature by detecting deviations from the set point and initiating responses. For instance, sweating cools the body when it’s too hot, while shivering generates heat when it’s too cold.