Science Do as directed; [1 M ]

Sea horse (Hippocampus) belongs to Pisces.

R.H. Whittaker classified organisms into five kingdoms.

Gymnosperm.

1. Trygon (Sting ray).
2. Clarias (Magur).

Carl Linnaeus, also known as Carl von Linne or Carolus Linnaeus, is often called the Father of Taxonomy. His system for naming, ranking, and classifying organisms is still in wide use today (with many changes).

Flagella, cilia and pseudopodia are used in locomotion in protozoa.

Prokaryotes orgnisms are those which do not have membrane bound organelles and have primitive type of nucleus called nucleoid.

Nematoda.

Lycopodiophyta Psilotophyta

Some of these are scavengers - macro-organisms that feed on dead or decaying matter, e.g. flies, cockroaches, earthworms. Others are decomposers, generally microscopic bacteria and fungi, that break down wastes. Organisms which feed on dead and decaying matter are commonly called as saprotrophs or saprophytes.

Locomotory organs of annelids are parapodia and setae.

Crocodile has four-chambered heart.

Vascular bundle are open and arranged in a ring in dicot stem.

Snake does not possess limbs.

Rhizobium forms a symbiotic association with roots of leguminous plants.

Gametophytic plant body of bryophytes is fixed to the soil through multicellular and branched rhizoids.

1. The common name of Pleurobrachia is comb jelly.
2. The common name of Cestum is Venus’s girdle.

Pteridophyta is a group of vascular cryptogams as in this group, plant body has well-differentiated vascular tissues.

1. Gambusia (Mosquito fish).
2. Exocoetus (Flying fish).

The scientific name of humans is Homo sapiens.

Thallophyta is a former division of plant kingdom that includes simple plant, i.e. with no leaves, stems or roots (plants body known as thallus.) It includes algae, fungus, lichens and occasionlly bacteria, bryophytes, etc. Some of examples includes are: Algae- Ulva, Spirogyra, Chara, Ulthoria, cladophoria etc. Fungi- Rhizopus, Mucor, etc.

Bryophytes is fixed to the soil through multicellular and branched rhizoids.

In gymnosperms, seeds are naked or exposed whereas in angiosperms, they are covered by fruit wall or pericarp.

Hydra is an example of a freshwater cnidaria.

The basic unit of classification is species.

Triticum aestivum.

Mesoderm.

Since the cell is photosynthetic, it must have a well-defined nucleus wall. Therefore it needs to be placed in Protista kingdom.

The common name of annelids is segmented worms.

Members of this group is commonly known as sponges. They are multicellular and mainly found in marine habitat.

Sponges belong to phylum Porifera.

Aves are warm-blood flying animals in which teeth are absent.

Blue green algae belong to the kingdom of Monera.

Echinoderms have tube feet that helps in respiration and locomotion.

There are seven categories in hierarchy classification.

Lichens belongs to kingdom fungi.

1. Nereis.
2. Starfish.

Platyhelminthes have organ system level of organisation.

Arthropoda is the largest phylum of Animalia.

The generic name of hag fish is Myxine.

An embryonic stage is absent in algae (thallophyte).

In phylum Hemichordata, pharyngeal gill slits are present but notochors is absent.

Locomotion occurs by tube feet in Echinoderms.

Angiosperms have highly developed vascular tissue system with vessels in the xylem and companion cells in the phloem.

1. In mammals, digits end up in nail and claws.
2. In mammals, hair are present as exoskeleton.

It has unique polymer of amino sugars and amino acids called peptidoglycan.

It is a type of body organization of animals which is based on cells that are not organized into tissues.

Species is the basic and lowest taxonomic category. All members of a species are capable of interbreeding.