Amoeba multiplies by simple mitotic cell divisions giving rise to two daughter Amoebae. Here, the growth is synchronous with reproduction, i.e., increase in number.

Metabolism is total sum of all biological reactions occurring in any living cell, which are absolutely controlled by enzymes. These reactions are of two types breaking down reactions (catabolism, e.g., cell respiration) and synthesing reactions (anabolism, e.g., photosynthesis).

The largest botanical garden in the world is Royal Botanical Garden (RBG, Kew, London) The famous well known botanical gardens in India are

(i) Indian Botanical Garden, Sibpur, Kolkata.

(ii) Lloyd Botanical Garden, Darjeeling.

(iii) Botanical Garden of FRI, Dehradun (UK).

(iv) National Botanical Garden (NBG) Lucknow, UP.

Growth in biological terms is characteristic feature of all living organisms. It relates to increase in size by accumulation of protoplasm in the cell thus results in increase in size of the cell. Whereas increase in number of cell by cell division results is the size of individual organism.

Snow is an inanimate (non-living) object, while rolling over snow, it gathers more snow on its surface thus, it increases in size by physical phenomenon but not by biological phenomenon. So, this growth cannot be compared to that seen in living organisms.

In a given habitat, there are existing 20 plant species and 20 animal species. They will of course exhibit the biodiversity of that given habitat because diversity refers to variation in a broad term and can be applied to any area. Whereas biodiversity is a degree of variation of life forms within a specified area.