1. Essential Resources:
* Energy: This is needed for all life processes, from movement to growth and reproduction. Most organisms get energy directly or indirectly from the sun through photosynthesis, while others obtain it by consuming other organisms.
* Matter: Organisms are made up of matter, and they need to take in nutrients from their environment to build and repair their bodies. This includes elements like carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
* Water: This is essential for most life processes, including transporting nutrients, regulating temperature, and providing a medium for chemical reactions.
2. Environmental Factors:
* Temperature: Organisms have an optimal temperature range for survival. Extreme temperatures can be lethal.
* Light: Many organisms need light for photosynthesis, while others use it for vision or to regulate their biological clocks.
* Oxygen: Most organisms need oxygen for cellular respiration, which produces energy.
* Habitat: This refers to the specific environment where an organism lives, which provides shelter, food, and other resources.
3. Other Requirements:
* Homeostasis: The ability to maintain a stable internal environment despite external changes is vital for survival.
* Adaptation: Organisms must be able to adapt to changing environments to survive.
* Reproduction: The ability to reproduce and pass on genes is essential for the continuation of a species.
In summary, organisms need a combination of essential resources, suitable environmental factors, and the ability to maintain homeostasis, adapt, and reproduce to survive.
