Statements: Some ships are boats. All boats are submarines. Some submarines are watches. Conclusion: I. Some watches are boats. II: Some submarines are boats. III: Some submarines are ships. IV: Some watches are ships. A. All follow B. Only II and III follow C. Only III follows D. Only IV follow

Consider the given statements to be true and decide which of the given conclusions can definitely be drawn from the given statement. Statements : 1. All books are novels. 2. Some novels are poems. Conclusions : I. Some books are poems. II. Some poems are novels.

Which of the following characters is shared by all chordates at some stage of life ?

The following fighures show velocity v versus time t curves. But only some of these can be realized in partice. These are

Homospory is a condition where all the spores are of similar kind these statements implies for a. some bryophytes, b. all pteridophytes, c. All bryophytes, d. majority of the pteridophytes

Read the following statements and select the correct ones. i) All vertebrates are capable of osmoregulation and thermoregulation. ii) Some species have evolved the ability to regulate, but only over a limited range of environmental conditions, beyond which they simply conform. iii)99 per cent of animals and nearly all plants can- not maintain a constant internal environment. - iv)Animals arc either perfect regulators or perfect conformers.

Limestone is present in the blast furnance production of iron in order to: (I) provide a source of CaO (II) remove some impurities (III) supply CO_(2)

Following are some statements regarding the primary and secondary antibody response in humans. All the statements are correct except

Asexual method of reproduction by binary fission is common to which of the following ? (i) Some eukaryotes (ii) All eukaryotes (iii) Some prokaryotes (iv) All prokaryotes

Some characters are given below i. Bilaterally symmetrical ii. Triploblastic iii. Segmented iv. Coelomate Which of the two phyla are characterized by the above all characters?