Answer:
Environmental Science is an interdisciplinary course covering a wide variety of topics including biology, physics, geology, ecology, chemistry, geography, astronomy, meteorology, oceanography, and engineering. The course also considers ways in which human populations affect our planet and its processes. Of special emphasis is the concept of sustainability as a means of using resources in a way that ensures they will always be around us. The unifying concepts that tie the different areas of environmental science together are as follows:
Science provides a way to learn more about the world and influences how we understand it.
Energy conversions underlie all ecological processes.
The Earth is one interconnected system.
Humans change natural systems.
Environmental issues have a cultural and social context.
Human existence depends in part on increasing practices that will achieve sustainability
Explanation:
translation: in most texts, how do we recognize that a living thing has life?
According to the cell theory which states that:
1.All living things are made up of one or more cells.
2.All living cells come from pre-existing cells, by division.
3.The cell is the fundamental, structural unit of all living organism.
The organismal theory on the other hand argues that during plant growth/evolution, the original cell expanded into the whole organism. This opposes the 2nd tenet of the cell theory that all living cells come from pre-existing cells by division.
5. Mitosis - cell division that produces two daughter cells that are identical to the original parent cell
2. Growth - the increase in size of cell or number of cells in an organism
6. Reproduction- the process by which cells produce new cells like themselves, or by which an organism produces an offspring
4. Metabolism all of the chemical processes in an organism that provide for the maintenance and functioning of the organism
3. Homeostasis - the maintenance of a relatively constant state in the internal environment of an organism
1. Adaptability - the change by a living organism in response to a change in the environment
Darwin also suggested a mechanism for evolution: natural selection, in which heritable traits that help organisms survive and reproduce become more common in a population over time. A heritable trait is one that's passed on from parents to children by way of genes.
Answer: Each air sac is surrounded by a network of fine blood vessels (capillaries). The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell.
In my own words
Each air sac is encircled by an organization of fine veins (vessels). The oxygen in breathed in air goes over the slim coating of the air sacs and into the veins. This is known as dissemination. The oxygen in the blood is then hefted around the body in the circulation system, arriving at each cell.
