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JEEMAIN and NEET
>>
Biology
>>
Ecology and Environment
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Q)
Which of the following is correct:-(
N
t
=Population at time t,
N
t
+
1
=Population after a unit,
B
=Natality,D=Mortality,I=Immigration time,E=Emigration)
(
a
)
N
t
+
1
=
N
t
+
[
(
B
+
I
)
−
D
+
E
)
]
(
b
)
N
t
=
N
t
+
1
+
[
(
B
+
I
)
−
(
D
+
E
)
]
(
c
)
N
t
+
1
=
N
t
+
[
(
D
+
E
)
−
(
B
+
I
)
]
(
d
)
N
t
=
N
t
+
1
+
[
(
B
+
D
)
−
(
E
+
I
)
]
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