Which of the following statements is NOT true about sponges ?
A) Their body is made up of two layers
B) They have the water vascular system
C) They have numerous micropores on their body
D) They have a cavity in the body
Which of the following statements is NOT true about sponges ? A) Their body is made up of two layers
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Give any four characteristic features of sponges.
Phylum Porifera (Pori = Pores: feron = bearing): Members of the phylum Porifera are also called sponges. Characteristic features of the phylum: 1. Habitat: They are aquatic, mostly marine but few species...
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Pores on the body of sponges through which the water enters.
Body surface: Their body bears minute pores called ‘ostia’ through which water enters the spongocoel (body cavity). Water leaves the body through a large opening called ‘osculum’. Beating of flagella creates...
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Porifera organisms are also called as A) Sponges
Correct option is A) Sponges
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The protozoa like sponges use……… for transportation.
(B) sea water
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Sponges create their own water currents by beating of:
Sponges create their own water currents by beating of flagella
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A mixture consisting of two liquids that do not mix and settle into layers when they left undisturbed is called ……………….
Correct option is C) emulsion
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In Two right angle triangles their hypotenuse AB, EF are equal and AC = DE then then which of the following is not true?
Correct option is (A) ΔABC ≅ ΔDEF In \(\triangle ABC\;and\;\triangle EFD,\) AB = EF (Both hypotenuse are equal) \(\angle C=\angle D\) \(=90^\circ\) (Angles opposite to hypotenuse) AC = ED (Given) \(\therefore\) \(\triangle ABC\cong\triangle EFD\) ...
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In Two right angle triangles their hypotenuse AB, EF are equal and AC = DE then then which of the following is not true?
2 Answers
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State true or false statements. Corret each false statements to make it true. (i) Within a species, genetic diversity occurs in the differences of all
Correct Answer - (i) TRUE (ii) Flase , more than 50,000 (iii) Flase, Ecomsystem diversity is low in Norway because of the ocurrence of a small number of ecosystems.
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Consider the following statements. I. Barr body is a deeply stained chromatin body.
Answer is : (a) I and II
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