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Byju's Answer
Standard XII
Biology
Morphology of Cockroach
Select the co...
Question
Select the correct option:
The given figure represents posterior region of male cockroach. Identify the parts labelled as A, B, C and D
A
A- 9th sternum; B- Anal style; C- 10th tergum; D- Anal circus
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B
A- Anal style; B- Anal circus; C- 10th tergum; D- 9th sternum
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C
A- 9th sternum; B- Anal circus; C- 10th tergum; D- Anal style
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D
A- 9th tergum; B- Anal circus; C- 10th sternum; D- Anal style
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Solution
The correct option is
A
A- 9th sternum; B- Anal circus; C- 10th tergum; D- Anal style
A - 9th sternum
B - Anal circus
C - 10th tergum
D - Anal style
So, the correct answer is 'A- 9th sternum; B- Anal circus; C- 10th tergum; D- Anal style'.
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Similar questions
Q.
A
l
2
O
3
+
N
a
O
H
+
H
2
O
(
l
)
→
N
a
A
l
(
O
H
)
4
(
a
q
)
Moles of
N
a
O
H
required to balance equation are :
Q.
Assertion: The 8th, 9th and 10th pairs of ribs are called false ribs
Reason: They are not directly attached to the sternum
Q.
Assertion :Baking powder contains
N
a
H
C
O
3
,
C
a
(
H
2
P
O
4
)
2
, starch and
N
a
A
l
(
S
O
4
)
2
. Reason:
N
a
H
C
O
3
C
a
(
H
2
P
O
4
)
2
is acidic in aqueous solution. Acidic solution of
C
a
(
H
2
P
O
4
)
2
liberates
C
O
2
on reaction with
N
a
H
C
O
3
Starch ] as a filter
N
a
A
l
(
S
O
4
)
2
retarder so that
C
O
2
is given off more slowly while preparing cake or bread.
Q.
The more commonly used baking powder contains about 30%
N
a
H
C
O
3
, 20%
N
a
A
l
(
S
O
4
)
2
, 10%
C
a
(
H
2
P
O
4
)
2
and 40% starch. Which of the following statements are correct?
Q.
N
a
H
C
O
3
can be used on its own to make cakes or bread. Baking powder is more commonly used, and contains
N
a
H
C
O
3
,
C
a
(
H
2
P
O
4
)
2
and starch. An improved combination baking powder contains about 40% starch, 30%
N
a
H
C
O
3
20%
N
a
A
l
(
S
O
4
)
2
and 10%
C
a
(
H
2
P
O
4
)
2
Answer the following questions based on above study.
In improved baking powder,
N
a
A
l
(
S
O
4
)
2
is used for :
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