When cool air sinks it forces warm air to rise is a example of convection.
Well you see each of the seeds have developed a special technique that allows their individual seeds to travel further and lower the probability of landing close to the tree and not getting the sunlight it needs
For the berries birds and various animals eat them carrying them away so hopefully they can get more sunlight
Helicopter seeds do the same thing except the sides themselves float away from the tree to get a further distance.
Finally the acorn seeds of the oak tree use the same concept of the berries. Various squirrels do eat these kinds of nuts and bury them in the ground in hopes of finding them later. But due to squirrels not remembering where they buried their acorn seeds the acorns are well away from the tree and start growing.
So you see all of these tree seeds are specially developed to help it get away from the trees. Especially so that they can grow in a much better environment than the one provided to them initially.
<span>Once the cytoplasm of the amoeba is moving, all the cells in the said cytoplasm will move as well. Consequently all the cell organelles can be seen changing positions. The cytoplasm’s ability to move is dependent on the entire composition of cell organelles that make up the said cytoplasm.</span>
The correct answer is gravity.
The planets and other heavenly bodies are attracted towards the earth by the earth's gravity. The pull which is formed by the gravity of earth holds the objects near the earth surfaces. The planets and atmosphere is also kept around the earth's surface by the gravity.
Answer:
<u><em>Phospholipids are amphipathic. </em></u>
Explanation:
Amphipathic compounds can be described as compounds which have both polar and non- polar parts.
The phospholipids have polar heads. The tails of phospholipids are non-polar. The tails are made up of fatty acids which are insoluble in water. It is due to the amphipathic nature of phospholipids that the cell membranes are made up by it. The property of phospholipids helps the cell membrane to filter which molecules to let enter into a cell and which molecules should not be taken into the cell.
