What happens when a star runs out of hydrogen? Eventually the core of the star runs out of hydrogen. When that happens, the star can no longer hold up against gravity. Its inner layers start to collapse, which squishes the core, increasing the pressure and temperature in the core of the star. At this point […]
What is a synthetic example?
What is a synthetic example? Synthetic is defined as something made via a chemical reaction. A fiber made in a factory as opposed to a natural fiber such as cotton is an example of a synthetic fiber. Is a synthetic material? Examples of Synthetic Materials – Examples of synthetic materials include synthetic fibers, ceramics, polymers, […]
What are the different threats of biodiversity?
What are the different threats of biodiversity? Threats to Biodiversity Habitat Fragmentation. Ecosystem conversion and ecosystem degradation contribute to habitat fragmentation. Exotic Species Introductions. Infestation by alien species, such as the Codling Moth, is also a major threat to BC ecosystems. Pollution. Global Climate Change. Corridors and Connectivity. What is an example of biodiversity? The […]
What do you mean by 1 unit water?
What are the human activities affecting the aquatic ecosystems?
What are the human activities affecting the aquatic ecosystems? Our water resources face a host of serious threats, all of which are caused primarily by human activity. They include sedimentation, pollution, climate change, deforestation, landscape changes, and urban growth. Which factors will cause a change within an ecosystem? The most important direct drivers of change […]
What 5 scientists contributed to the cell theory?
What 5 scientists contributed to the cell theory? Contributions to Cell theory Zacharias Janssen. 1590. Robert Hooke. 1663 – 1665. Anton Van Leeuwenhoek. 1674 – 1683. Theodor Schwann. 1837 – 1839. Matthias Schleiden. 1839. Rudolph Virchow. 1855. What are the 4 parts of the cell theory? Terms in this set (4) FIRST PART. CELLS CONTAIN […]
Are armadillos related to dinosaurs?
Are armadillos related to dinosaurs? With their bony exterior, armadillo’s have often been called living dinosaurs. Now, a new study further confirms it by finding they are related the now extinct glyptodonts—huge, armored mammals that went extinct in the Americas at the end of the last ice age. Are armadillos still alive? Today, all extant […]
What are the lying positions?
What are the lying positions? The following are the basic recognized ones. Supine: lying on the back on the ground with the face up. Prone: lying on the chest with the face down (“lying down” or “going prone”). See also “Prostration”. Lying on either side, with the body straight or bent/curled forward or backward. What […]