<u>Answer:</u>
Granitic rock in the ocean floor was not included in the support for Harry Hess's hypothesis of sea-floor spreading.
<u>Explanation:</u>
- Separation of the ocean floor which leads to the expansion of the ocean is called as sea-floor spreading.
- By this process there is formation of oceanic crust that are formed by volcanic activity along with the mid-oceanic ridge.
- Rock are basaltic and dense in nature. By this theory, it is suggested that the rock which are present near the mid-oceanic ridge are younger and the rock which are far from them are older than them.
- Plate tectonic movement is the cause for the sea-floor spreading.
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The organisms responsible for primary production are known as primary producers or autotrophs, and form the base of the food chain. In terrestrial ecoregions, these are mainly plants, while in aquatic ecoregions algae are primarily responsible
Answer:
Our alimentary canal undergo a process or a movement called peristalsis, in which the walls continuously move to pass the food downwards. So if you eat hanging upside down, the food would surely move.
Explanation:
- Peristalsis is a series of wavelike muscle contractions that moves food to different processing stations in the digestive tract and the process begins in the oesophagus when a bolus of food is swallowed.
- The muscles of the oesophagus are strong enough to propel food and liquids into the stomach even when hanging upside down although there is a risk of choking
- It is advised that maintaining a correct body positioning during eating is very important for digestion to happen properly and avoid blockage of the airways by food and fluid.
- Leaning your body upright slightly and rounding your shoulders a bit so that your chin is tucked-up is a way of exercising safe chewing and swallowing.
The answer is D, being breathed into the lungs.
