The three examples of stimulus include;
1. Hit the skin with a needle or pin is a good example of stimulus. The sudden removing of the hand is the response.
2. When somebody bangs a door you jump if you were unaware because of the sound. The jumping is the response to a stimulus.
3. Holding a hot plate we fling hand away from it. The stimulus here is holding the plate while removal of the hand is the response.
Stimulus is the change or cause in an organism's surrounding which causes the organisms to react.
Darwin reasoned that natural selection organisms had adapted to new environments, giving rise to new species. It is a principle of speciation.
<h3>Speciation, natural selection and environment</h3>
Different environmental pressures (e.g. the type of food) lead to different evolutionary pathways in genetically related organisms.
The organisms subject to different environments evolve as a consequence of natural selection in order to adapt (adjust) to their corresponding environments.
In consequence, this process may eventually lead to speciation due to the emergence of reproductive isolation barriers.
Learn more about natural selection here:
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A function of the cell structure that it provides support to labeled x .
What is the function of cell?
- They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks.
- Additionally, cells have the ability to replicate themselves and contain the body's genetic material.
- Each component of a cell has a different purpose.
What is cell structure and function?
- Cell architecture - Individual parts of the cell structure each have a specific purpose that is necessary to carry out life's processes.
- Cell wall, cell membrane, cytoplasm, nucleus, and cell organelles are some of these elements.
- Continue reading to learn more about the composition and operation of cells.
3 Major Functions of a Cell -
- Energy Generation.- Living cells exist in a perpetually active biological state. .
- Molecular Transport - Each cell is surrounded by a membrane that delineates its boundaries and acts as a gatekeeper, controlling the movement of molecules into and out of the cell.
- Reproduction.
Learn more about cell structure
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Yes, since B and C will be pushing towards each other, it will form a mountain.
