Difference Between Arthropods Annelid animals | Animal Kingdom | NCERT-CBSE | thecbsesolver

Differentiation Between Aves vs Mammalia, Gymnosperms vs Angiosperms, Porifera vs Cnidaria, Annelida vs Arthropoda, Amphibians vs Reptiles by TheCbseSolver.

Q. How do annelid animals differ from arthropods? Differences:

Annelid animals

(a) They have true body cavity.

(b) They do not have jointed legs.

(d) Excretory organs are nephridia.

(e) Sensory system is less developed.

(f) Respiration is mostly through skin.

Arthropods

(a) They have a false body cavity with blood.

(b) They have jointed legs.

(d) Excretory organs are green glands and mal-pighian tubules.

(e) Sens, system is well developed.

(f) Respiration is by gills or lungs or tracheae.

Q. What are the differences between amphibians and reptiles? Differences

Amphibians

(a) They do not have scales

(b) Skin is smooth and moist.

(d) Fertilisation is external.

(f) They lay eggs in water.

Reptiles

(a ) They have scales.

(b) Skin is dry and cornified.

(d) Fertilisation is internal.

(e) Digits end in claws.

(I) They by eggs with tough coverings and do not need water for laying eggs.

Aves

(a) They lay eggs.

(b) They do not have mammary glands.

(d) Body is covered with feathers.

(e) Forelimbs are modified into wings.

(f) Bones are hollow or pneumatic.

(g) Birds are oviparous.

Mammalia

(a) They give birth to young ones.

(b) They have mammary glands for production of milk to nourish their young ones.

(d) Feathers are absent.

(e) Wings are absent except in bats.

(I) Bones do not possess air cavities.

(g) Mammals are viviparous with a few exceptions like platypus and echidna.

Q. How do Gymnosperms and Angiosperms differ from each other?

Gymnosperms

(a) The seeds are naked.

(b)The microspores and megaspores are produced by male and female cones.

(d) The ovules are not located in the ovary.

Angiosperms

(a) The seeds are enclosed by fruit wall.

(b) The microspores are produced in anthers while the megaspores are produced in ovules of the ovary in flowers.

(d) The ovules are enclosed in the ovary.

Q. How do Poriferan animals differ from coelenterate animals? Differences:

Porifera

(a) They possess cellular level organisation.

(b) The body has several pores, ostia and osculum.

(d) Appendages are absent.

(e) Digestion is intracellular.

(f) Muscles and nerve cells are absent.

Coelenterate

(a (a)They possess tissue level organisation.

(b) The body has a single opening.

(d) Appendages occur in the form of tentacles.

(e) Digestion is both intracellular and intercellular.

(f) Muscles and nerve cells appear for the first time in coelenterates.

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