1) About 80% of earth’s surface is covered by water and about 20% of surface is covered with land.
2) On earth, water is present every where - in the atmosphere (as water vapour), in the soil (as soil moisture) and under ground water, in small and large water bodies (such as seas, rivers, lakes, wells etc..)
3) Of the total water present on earth, about 97% is present in seas. Only very small amount (about 3%) of water is useful for human use
Parthenocarpy is a condition in which fruits develop without seeds forming. This method of fruit cultivation was first presented in 1902. This is mostly owing to the lack of fertilization, pollination, and embryo development in plants. Parthenocarpic fruit is a botanical term that signifies "virgin fruit." The majority of these fruits are seedless.
Parthenocarpy is introduced during cultivation, along with other plant hormones such as gibberellic acid. It causes the ovaries to mature without the need for fertilization, resulting in larger, pulpier fruits. This method can be used on a wide range of crops, including squash, cucumber, and many more.
Parthenocarpy can be seen in bananas. The bananas produced in this natural process are sterile, have no viable ovaries, and do not produce seeds, therefore they must be propagated vegetatively. Parthenocarpy can also be seen in nature, such as in pineapples and figs.
Final Answer :
Parthenocarpy is the natural or artificial generation of fruit without ovule fertilization, resulting in seedless fruit. Bananas, grapes, and other fruits are examples
An amoeba is a single-celled organism. Endocytosis or phagocytosis is the method through which it acquires its meal.
Endocytosis is a process in which the plasma membrane spreads outwards to swallow particles on the outside.
In Amoeba, the plasma membrane engulfs food particles on the outside and transports them inside the cell via endocytosis by producing a food vacuole around the particle with pseudopodia.
Final Answer :
Food is taken in by amoeba by transient finger-like projections of the cell surface that fuse over the food particle to create a food vacuole. Complex compounds are broken down into simpler ones inside the feeding vacuole and diffuse into the cytoplasm.