Nutrition: Autotrophs, Heterotrophs, and Digestion
T.9: Nutrition
Nutrition is the process where organisms exchange matter and energy with their environment. Based on nutrition, organisms are classified as:
Autotrophs
Use inorganic matter to create organic matter. They obtain energy from:
- Photosynthesis (light energy, e.g., algae, plants)
- Chemosynthesis (energy from oxidation, e.g., some bacteria)
Heterotrophs
Obtain energy from organic compounds produced by other organisms (e.g., animals, fungi, bacteria).
Nutrition Process
Ingestion: Animals incorporate
Read MoreWater Systems Engineering: Key Concepts and Applications
Water Systems Engineering: Key Concepts
Pressure and Flow in Pipes
Which of the three deposit outflows lead to less loss of pressure? A pipe transitions with a smooth curve to the vertical parameter of the deposit. From that distance, the delivery point is reached with a pressure drive expressed by H = 2LV / GT (at the beginning of the drive in the check valve pump).
What minimum diameter would you use for a distribution network to a city of 125,000 inhabitants connected to hydrants? 150mm
What critical
Read MoreEffective Waste Management Strategies
Waste Management
Waste management involves collection, disposal, treatment, and safe storage of hazardous waste.
A. Waste Reduction and Recovery
Techniques to minimize waste and recover resources.
- Source Reduction: Using clean technologies to reduce waste in manufacturing.
- Volume Reduction: Separating waste at the source and physical reduction methods.
- Recovery and Recycling: Reusing waste in manufacturing or the same processes.
B. Waste Processing
Transforming waste to obtain energy or other products.
Anaerobic
Read MoreEnvironmental Impacts and Sustainability Measures
Environmental Impacts
Environmental impact refers to any alteration or modification that the environment suffers as a result of human activities.
Types of Impacts
- Local: Air pollution
- Regional: Acid rain (by country, region)
- Global: Greenhouse gases (planet, greenhouse effect)
Contamination
Any substance or energy form added to air, water, soil, or food that threatens human health or survival. Types include:
- Degradable: Organic, slow degradation (e.g., some plastics, degradable chemicals)
- Non-degradable:
Understanding Spain’s Climate and Resources
1. Atmospheric Circulation
The atmosphere’s circulation includes jet streams, high-altitude winds reaching 500 km/h. Two main types exist: the subtropical (35-40°) and the polar (60°). These currents descend in winter and ascend in summer, impacting aviation. Jet streams move eastward, creating rightward air descents (high pressure) and leftward air ascents (low pressure). Earth’s movement influences jet streams.
1.1 Air Circulation Near the Surface
Occurs mainly in the troposphere, with low-pressure
Read MoreAtmospheric Composition and Climate Factors
Atmospheric Composition
The Earth’s atmosphere is a wrapper composed of gases and other gaseous elements not in suspension. The main gases are Nitrogen (N), Oxygen (O2), Argon (Ar), and Carbon Dioxide (CO2). Atmospheric dust and living material are present in small quantities.
These gases originate from the Earth’s rocks and materials. Initially, the atmosphere contained large amounts of carbon dioxide and water vapor, with less oxygen. The oxygen production process began in the oceans due to early
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