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All birds have

omnivorous habit
feathers and can fly
nests to care the babies
calcareous-shelled egg
Additional Questions

Which one of the followings in birds indicates their reptilian ancestry?

Answer

Consider the following four statements (a - d) about certain desert animals such as kangaroo rat.
(a) They have dark colour and high rate of reproduction and excrete solid urine
(b) They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs
(c) They feed on dry seeds and do not require drinking water
(d) They excrete very concentrated urine and do not use water to regulate body temperature.
Which two of the above statements for such animals are true?

Answer

Ornithorhynchus is an example of :

Answer

Silk thread is obtained from silk moth during

Answer

Radial symmetry occurs in which set?

Answer

Column I contains larval stages and Column II contains the group to which it belongs. Match them correctly and choose the right answer from the options given below:

Column – IColumn – II
APlanulapAnnelida
BTornariaqMollusca
CTrochophorerArthropoda
DBipinnariasChordata
EGlochidiumtEchinodermata
uCoelenterata

Answer

Which one of the following statements is correct?

Answer

The figure shows four animals (a), (b), (c) and (d). Select the correct answer with respect to a common characteristic of two of these animals.
(a) (b) (c) (d)

Answer

The cross section of the body of an invertebrate is given below. Identify the animal which has this body plan.
Cross section of the body of an invertebrate

Answer

Which one of the following statements is incorrect?

Answer
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