Snails are considered living creatures because they grow, reproduce, respond to their environment, and have a complex structure. Their shells, although stationary, are part of their living, biological systems.
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A living creature is defined by its ability to grow, reproduce, respond to stimuli, and maintain homeostasis. These characteristics differentiate living organisms from non-living things, which do not exhibit these features.
Growth refers to an increase in size or mass, while development involves changes in complexity and function. Growth is quantitative, whereas development is qualitative, encompassing the maturation of structures and abilities.
Genetic material, such as DNA, provides the instructions for developing and functioning of organisms. During reproduction, genetic material is passed to offspring, ensuring that traits and characteristics are inherited and maintained across generations.
Reproduction can be sexual or asexual. Sexual reproduction involves the fusion of gametes from two parents, while asexual reproduction involves a single organism producing offspring without gamete fusion, such as through budding or fission.
Reproduction ensures the continuation of a species by producing new individuals. This process helps pass on genetic information to offspring, allowing species to adapt and survive across generations despite environmental changes.
Living creatures use feedback mechanisms, such as temperature regulation and hormonal adjustments, to maintain homeostasis. These mechanisms help regulate internal conditions and respond to external changes to keep the internal environment stable.
Living creatures grow by increasing in size and complexity. This growth involves cellular multiplication and expansion, development of tissues and organs and overall maturation, driven by genetic instructions and environmental factors.
Living creatures reproduce through various methods, including sexual and asexual reproduction. Sexual reproduction involves the fusion of male and female gametes, while asexual reproduction involves producing offspring without gamete fusion, like budding or binary fission.
Besides protection, a snail’s shell helps prevent dehydration by reducing water loss. It also provides structural support and serves as a retreat for the snail to hide from threats or harsh conditions.