The correct answer is - marine organisms.
Both, the oil and the natural gas are formed on the basis of dead marine organisms. When the marine organisms were dying, they were falling in depths and onto the sea/ocean floor. The sea floor is covered with very soft sediments, and if they were not eaten by scavengers, or they have been covered with another layer of sediments, they have been relatively well preserved. As they were decomposing, the isolation, temperature, and pressure, managed to transform the dead remains of the marine organisms into oily sticky liquid that over time gained the characteristics that we see now in the oil and the natural gas.
Both plant cells and animal cells have mitochondria, A.
Answer:
- E. Does photosynthesis performed by elodea remove CO2 from the water?
- F. Does cellular respiration occur at a higher rate than photosynthesis in the tube with only elodea?
Explanation:
The tubes were placed under a growth light and as the elodea is growing, it would need photosynthesis to provide food. The color changes will therefore allow the students to see the effect photosynthesis has on the CO2 in the water by checking to see if the BTB turns blue which would mean that CO2 was removed by photosynthesis.
The students will also be able to see which process occurs faster in the tube with only elodea because the dominant color would show if cellular respiration occurs faster than photosynthesis or if the case is the reverse. For instance, if respiration is occurring faster, there will be more CO2 which would turn the BTB towards yellow, if photosynthesis is faster the BTB will turn towards blue and if the rates are similar, the BTB will remain green.
Answer:
Calgary (North America) and London (Europe) have different climates even being located from the same latitude on Earth is due to the gulf stream (warm, fast ocean current).
Explanation:
The location of a place in the north or south of the equator is provided by latitudes. The higher latitudes (away from the equator) receive less heat than lower latitude areas nearer the equator because different latitudes receive different amounts of sunlight. Climate of the earth depends on the latitude, the arrangement of oceans and land masses, and ocean currents.
The places near to oceans, like London is warmer in winter and cooler in the summer. The light from the sun warms up the ocean and some of this heat is transferred to the air making the land warmer. Also the oceans move heat around the earth as the water in the ocean is always moving. This moving of ocean water is known as ocean current.
The Gulf Stream is a strong, fast and warm ocean current, which is caused by the clockwise flow of water in the North Atlantic, that draws warm water from the equatorial region (Gulf of Mexico). The winds from the Arctic causes the cooling of surface water in the North Atlantic ocean. Some of the water evaporates making the rest more salty and dense, and as a result the cold water sinks into the ocean floor. Then it moves towards the equator and gets warm slowly. The warm water from the Gulf of Mexico then moves into the Atlantic (Gulf Stream) to replace the cold equator-bound water.
This warm ocean current and the warmer airflow associated with it increases the temperatures of the most of Europe while North America has ocean currents that originate in the colder regions and bring colder weather onto land.
False <span>Gene testing is not foolproof</span>