Tracheophytes & Mushroom

Define characters & groups of Tracheophytes?

Which plants have conducting or vascular tissues are called Tracheophytes. This word is composed of further two words: (Trachea= Vessel, Phyton= Plant). These conducting tissues are Xylem & Phloem. They are help in transportation in plant and supporting to the body of the plants. Tracheophytes have well defined and true roots. They are ranging from miniature to giant size. They show alternation of generation, their saprophyte generation is dominant and totally independent. Tracheophytes are divided into main groups, they are:

Prteridophytes
Spermatophytes
Prteridophytes are divided in further four groups, these are:
Psilopsida (Psilopsida)
Lycopsida (Club-Mosses)
Sphenopsida (Horse tails)
Pteropsida (Ferns)
Spermatophytes are mostly divided in two main groups:
Gymnosperms
Angiosperms

Gymnosperms are further divided in two main groups:
Cicadae
Coniferae
Angiosperms are divided in two main groups:
Dicotyledons
Monocotyledons

Name different methods of gaseous exchange in frog?
Cutaneous Respiration
Buccal Respiration
Pulmonary Respiration
Describe the parts of eye?
Inner liquid
Upper eye lid
Iris
Cornea
Lens
Outer liquid
Lower eye lid
Retina
Choroid
Sclerotic
Optic nerve
Vertical section of frog’s eye.

What is Mushroom?

Mushroom is a fungus and also cultivated as delicious food. Its parts are:

Cap
Mycelium
Gills bearing spores

Umbrella
Stalk
Hyphen

Which are egg laying mammals?

These are also mammals. Like reptiles, they lay eggs. They have also mammary glands. They feed milk to their babies. For example, Duck Billed and Spiny Ant Eater are only living examples of this group. They link between reptiles and mammals.