Biology

The anther is the part of the stamen (male reproductive organ) in flowers that produces pollen grains, which contain the male gametes necessary for fertilization.

The seed coat is the protective outer layer of a seed and is commonly called the 'Testa'. 'Radical' refers to the embryonic root, and 'Tegmen' is the inner seed coat layer, so 'Testa' is the correct term for the seed coat.

The structure in a cell that contains genes is called a chromosome. Chromosomes are made of DNA and carry genetic information essential for inheritance.

A child inherits half of their genes from each parent, resulting in an equal number of genes from the mother and the father.

The first antibiotic, penicillin, was extracted from the fungus Penicillium notatum by Alexander Fleming in 1928. This discovery marked the beginning of antibiotic therapy.

The Eustachian tube connects the middle ear to the nasopharynx and helps equalize pressure in the ear. It is anatomically located in the ear region, not in the brain, lung, or stomach.

A vivarium is an enclosure, container, or structure adapted or prepared for keeping animals under semi-natural conditions for observation or study. Therefore, you would find animals in a vivarium.

Bacteria contribute to decomposition, nitrogen fixation, and oxygen production indirectly through some species like cyanobacteria. Therefore, none of the options listed are not benefits of bacteria, making 'None of these' the correct answer.

Moss is a non-flowering plant as it reproduces via spores and does not produce flowers, unlike Jasmine and Sunflower which are flowering plants.

Classification of animals and plants based on chromosome number is called 'cytotaxonomy,' which is not listed among the options. Taxonomy is the general science of classification but does not specifically refer to chromosome-based classification. Therefore, 'None of these' is the most accurate choice.