B, B, B, A, A, A, D, C, B
well according to my memory and one of the save the earth communities, the great white shark is almost extinct cause of pollution, and mainly poachers, lots of poachers for soup made of shark fins.
they would cut off the fin then throw the dead shark back in the ocean.
i hope this helped.
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Answer:
Hemoglobin is responsible for binding and transporting oxygen in the body. It is a tetrameric protein that is found in high concentration in red blood cells (erythrocytes, red blood cells). Each hemoglobin molecule is made up of four subunits: two of the alpha type and two of the beta type, and each subunit can bind an oxygen molecule through its heme group.
Structure studies have shown that hemoglobin can adopt two conformations, called T (tense) and R (relaxed). Deoxyhemoglobin (in blue) is in state T, and the union of oxygen (in red) causes the transition to state R. The animation shows a close view of the heme group (in white, balls and rods) of one of the subunits of hemoglobin. In the deoxygenated state (T), the iron atom is not coplanar with the rest of the heme group due to its association with the histidine side chain. The union of oxygen displaces the iron atom so that it remains coplanar with the rest of the heme group, which in turn drags histidine, producing a larger-scale conformational change that affects the entire protein.
Hemoglobin can be considered as a tetramer formed by two alpha-beta dimers. The conformational change associated with the transition from T to R mainly affects the relative position of these two dimers (rather than the interactions between the alpha and beta subunits within a dimer). This is illustrated in the last stretch of the animation (drawn in black and white).
Answer:
A biome is described as an area of the planet, which is classified on the basis of plants and animals living in that area. Soil, amount of light, temperature, and water are some of the important factors that determine what type of life exists in a biome.
The temperature, vegetation, and precipitation are the important characteristics of the biome.
Examples of biomes include tundra, desert etc.
Answer:
Because they are not native to a location, they can quickly dominate the wildlife.
Explanation:
- They may not have any predators to keep them in check.
- They basically destroy a food chain which can have a domino affect of killing off other native species that require certain food to survive.
- Some might spread disease.
