Question

Seed coat
}
helium,
funiculus
integuments
pollen grain .
2 give the odd one​

Answer 1

Answer:

pollen grain

Explanation:

helium : in botany, a hilum is a scar or mark left on a seed coat by the former attachment to the ovary wall or to the funiculus (which in turn attaches to the ovary wall).

funiculus : There is a small opening at one end of the seed coat, called micropyle through which water enters the seed. The stalk of the speed with which the seed is attached to fruit wall is called funiculus

integument : Depending on its development, the seed coat is either bitegmic or unitegmic. Bitegmic seeds form a testa from the outer integument and a tegmen from the inner integument while unitegmic seeds have only one integument. Usually parts of the testa or tegmen form a hard protective mechanical layer.

pollen grain :each of the microscopic particles, typically single cells, of which pollen is composed. Pollen grains have a tough coat that has a form characteristic of the pollen-producing plant and which can still be recognized in some archaeological deposits.

hence pollen grain is the odd one out