Category: Topics

Carbon Cycle Nitrogen Cycle

Succession is defined as a progress in the change of ecosystems. As time passes, biodiversity increases and the climax community is ultimately formed. Primary Succession Begins with no life No soil present, only bare rock New area Lichen and moss are pioneer species Biomass, the number of organisms, is low EXAMPLE: Volcanic eruption Secondary Succession … Continue reading Succession

As you can see from the chart above, mutualism is when both species benefit. Commensalism is when one species benefits, and the other remains unaffected. Parasitism is when one species benefits, and the other is harmed.

Energy is ultimately sourced by the sun. Autotrophs are also known as producers in a food chain or energy pyramid. They use the sun’s energy to create food energy with the process of photosynthesis. Heterotrophs are also known as consumers in a food chain or energy pyramid. They obtain nutrients by consuming others. Herbivores eat … Continue reading Energy Transfer in the Ecosystem

For plant transport, the roots absorb minerals and water. They are transported through the shoot system. Xylem and phloem are vascular tissues. Xylem carries water upward, and phloem carries nutrients up and down. Leaves are where the nutrients are made. Guard cells are cells that surround an opening called a stomata. The stomata opens and … Continue reading Plant Systems

Interactions of Body Systems: It is important to know and understand how certain systems work together to perform a function. Reflexes use the nervous and muscle system. Responses to fear use the nervous system, the circulatory system, and the muscular system. Cellular respiration uses the respiratory system and the circulatory system. Fighting diseases use the … Continue reading Body Systems

The levels of organization are atoms, molecules, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, and biosphere.

Reactants are ingredients, and products are the results from a chemical reaction. In photosynthesis, the reactants are carbon dioxide and water. They produce glucose and oxygen with the use of the sun. In cellular respiration, the reactants are glucose and oxygen. They produce carbon dioxide, water, and ATP with the use of chemical energy. Aerobic … Continue reading Photosynthesis and Cellular Respiration

Enzymes are proteins. They are also catalysts, which means that they speed up chemical reactions by using less energy. Enzymes have a specific substrate which bonds to them. This substrate bonds to a location on the enzyme called an active site. When the chemical reaction takes place, the result is called a product. Enzymes can … Continue reading Enzymes

Molecules that are made up of smaller building blocks are biomolecules. These building blocks are called monomers and they create a polymer. All four biomolecules are… Carbohydrates (CHO). Made with monosaccharides. Monomer: quick energy from glucose Polymer: energy storage EXAMPLES: Glucose, starch, lactose Lipids (CHO). Made with hydrocarbon. Long term energy storage Insulation Waterproof EXAMPLES: … Continue reading Biomolecules