In this interaction, one is benefited and the other remains unaffected. 

Epiphytic plants hang in air, so they cannot absorb water from soil.

Roots of varying shapes are present at the nodes of the running stem.

These are the ancient bacteria that can produce methane gas used in biogas plants.

These enzymes lead to the breakdown of a molecule leading to the removal of a functional group.

The homologous chromosomes pair up and form synaptonemal complex during this phase.

It is guarded by bicuspid valve which is also known as mitral valve.

In haemoglobin, globulin protein is associated with the heme-group, which gives it the red colour.

The parental types are coupled and do not show independent assortment while the non-parental types show repulsion.

It is the mutation in already mutated form so that it may retrieve to the original.

Pteridophytes do not bear seeds but have a well developed vascular system.

Chara destroys the mosquito larvae when added to the aquarium.

Monera includes all prokaryotes which are having nucleoid instead of a nucleus.

In a monohybrid cross, one dominant, one recessive and 2 heterozygous will be obtained.

In this type, the stipule gets modified into spine to protect the plant from animals.

All listed functions are concerned with ER.

This type of separation technique is involved to separate the molecules which have differential mobility on the stationary phase.

These two nitrogen bases are the purines of DNA.

This is the bulbous structure which makes the sporangia easily distinguishable.

The living system may gain or lose energy, depending on which the entropy of the system may increase or decrease.