The nervous system.
Which is made up of the peripheral nervous system and the central nervous system (including the brain).
The animal kingdom most commonly possesses a nervous system, which allows animals to sense their environment, process information, and respond to stimuli. The nervous system is responsible for coordinating various activities within an organism.
The nervous system is responsible for receiving and processing stimuli from the external environment or within the body. This information is then relayed to the brain for interpretation and to coordinate appropriate responses through motor neurons. This ability to react to stimuli is crucial for survival and maintaining homeostasis.
stimuli
Animals can maintain a stable environment by living in groups. Animals also eat to keep a stable environment. The body design of most animals like fur also help regulate the environment.
internal is in and external is out
Decomposers, such as fungi and bacteria, are most responsible for recycling atoms within the environment. They break down organic matter into simpler compounds, releasing nutrients back into the ecosystem for other organisms to use.
Interoceptors are sensory receptors located within the body that detect internal stimuli (e.g., changes in organ pressure, pH, or temperature). Exteroceptors, on the other hand, are located on the body's surface and respond to external stimuli (e.g., touch, temperature, or light).
Mice play many roles within an ecosystem. These animals help to rid insects that can damage plants, cultivate soil when digging, and are food for other animals within the environment.
No. Koalas do not misbehave. They are wild animals which behave perfectly appropriately when left within their natural environment.
in the cell membrane depends on the receptor. A lot are in the cell membrane but some may be cytoplasmic or even nuclear depending on the solubility of the ligand and how it enters the cell.
Reflexes
Stimuli itself is of two types - external stimuli and internal stimuli. External stimuli refers to touch, pressure, heat etc. Internal stimuli refers to the stimuli produced by body components - like hormones etc.