Question

How does fossilization occur in plant

Answer 1

the fusion of male and female gamers is known as fertilisation

Explanation:

there r 2 types

self and cross

in self .... the pollen grains transfers from its own flower to its ovary to Delmar germ cell with the help of wind

in cross

the pollen grains from other plant transfer to ther ovary of a pant with help of insects

Answer 2

Answer:

Fossilization:-

The process of formation of fossil in the rocks is called fossilization.

Common methods of fossilization includes,

1. Petrifaction
2. Molds and Cast
3. Preservation
4. Compression
5. Infiltration

i)Petrifaction:-

• Minerals like silica slowly penetrate in and replace the original organic tissue and forms a rock like fossil.
• This method of fossilization can preserve hard and soft parts. Most bones and wood fossils are petrified.

ii)Mold and cat:-

• A replica of a plant or animal is preserved in sedimentary rocks.
• When the organism gets buried in sediment. It is dissolved by underground water leaving a hollow depression called a mold.
• It shows the original shape but does not reveal the internal structure.
• Minerals or sediment fill the hollow depression and forms a cast.

iii)Preservation:-

• Original remains can be preserved in ice or Amber ( tree sap).
• They protect the organisms from decay. The entire plant or animal is preserved.

iv)Compression:-

• When an organisms dies , the hard parts of their bodies settle at the bottom of the sea bed and are covered by sediment.
• The process of sedimentation goes on continuously and fossils are formed.

v)Infiltration or Replacement:-

• The precipitation of minerals takes place which later on infiltrate the cell wall.
• The process is brought about by several mineral elements such as silica, calcium carbonate and magnesium carbonate.
• Hard parts are dissolved and replaced by these minerals.