Respiratory organs in man
A) skin
B) trachea
C) lungs
D) gills
1 Answers
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Copper containing respiratory pigment in blood of molluscs.
Circulatory system: Circulatory system is of open type (except in Sepia, where it is of the closed type). Blood contains a copper-containing blue-coloured respiratory pigment called haemocyanin.
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The correct sequence of human ancestors in increasing brain capacities. a. Neanderthal man b. H. erectus c. Cromagnon man d. H. habilis e. Australopit
Correct Answer - e-d-b-a-c
2 Answers 1 views
How many of the following statements are incorrect for parasites (A) Presence of un-necessary sense organs (B) Presence of adhesive organs & suckers (
Correct Answer - Two or 50% B and D are correct A and C are incorrect
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A man standing on a moving escalator, completes a certain distance in time `t_(1)`. If the escalator does not move then man covers this distance in ti
Correct Answer - (i)`(t_(1)t_(2))/(t_(1)+t_(2))`, (ii)`(t_(1)t_(2))/(|t_(1)-t_(2)|)`
2 Answers 3 views
Respiratory organs in insects
Respiratory organs in insects trachea
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Respiratory organs in earthworm
Respiratory organs in earthworm skin
2 Answers 1 views
A man shouts loudly close to a high wall. He hears an echo. If the man is at 40 m from the wall, how long after the shout will the echo be heard?
Given: s = 40m, v = 330 m/s To Find: time (t) Formula: Time = distance \(\frac{distance}{speed}\) Calculation: The distance travelled by the sound wave = 2 × distance from man to wall. = 2 × 40...
2 Answers 43 views
The respiratory organs of fish A) Fins
Correct option is C) Gills
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Organs having same anatomical structure but differ in their function are called homologous organs. Organs having different
Answer is (C) 1 and 2
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The respiratory organs in Tadpole larva ……
The respiratory organs in Tadpole larva Gills
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