Octopus and squid have little suction cups on their tentacles. It helps with sticking onto food (so it doesn't get away) and also helps with sticking into things. If it wanted to camouflage into some rocks, it can use its tentacles to cling to to the rock.
Tentacles can also grab and carry things. Scientists have made tests where they would put a clam in a jar with the lid screwed on. The octopus would grab onto the jar and use its tentacles to twist the lid off.
Without tentacles, octopuses and squids would be pretty helpless and probably couldn't survive in the deep ocean.
Work done = 100J
Distance = 5 meters
Force = ?
Force = 100/5 = 20N
Therefore, the force needed is 20 Newtons
In an ecosystem the component energy is not recycled
A magnitude-5.0 earthquake releases about <u>32</u> times more energy than a 4.0 magnitude earthquake.
Explanation:
The characteristics of an earthquake are mostly measured through its magnitude and intensity.
A earthquake will generate seismic energy waves which will spread outwardly on the earth's surface in all directions.
The magnitude of an earthquake is the quantitative measure of the amount of energy released during a seismic activity or an earthquake.
The intensity of an earthquake is a descriptive measure of the severity or the strength of the earthquake based on the impact it has done on the earth’s surface, human population, and other man-made structures on the earth and the potential danger.
The magnitude measured using a seismograph is expressed as a whole number or a decimal fraction like 5.7, 4.5 etc. The severity of the magnitude is compared against the standard Richter’s Scale.
The intensity is denoted in Roman numerals and compared against various scales like Mercalli or Rossi-Forel Scales.
Based on the logarithmic application of the scale, each whole number increase in an earthquake’s magnitude depicts a ten-fold increase in severity of the amplitude of the earthquake as measured on the seismogram and denotes about 32 times increased energy release
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The correct answer is option b. higher levels of hemoglobin.
The partial pressure of the oxygen decrease as the height from the sea level is increased. Due to the decrease in the partial pressure, the amount of the oxygen delivered by the hemoglobin to cell decrease. So, in order to cope up the condition, the amount of the hemoglobin in the blood is increased. the increased amount of the hemoglobin delivers more oxygen than the normal amount of hemoglobin can do, so, it help in survival at low oxygen levels.
