Apex of age pyramid of a stationary population is

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11.Organisms and Populations

normal

The apex of age pyramid of a stationary population is

Very narrow

Broad

Not much difference

Equal to base

Solution

(d) Stationary or stable population has equal birth and death rates. So population shows zero population growth. The pyramid of this type of population is bell shaped.

Standard 12

Biology

Aerenchyma is the characteristics feature of

normal

Water logging occurs in

normal

In a pond, we see plants which are free-floating; rooted – submerged; rooted emergent; rooted with floating leaves. Write the type of plants against each of them.

Plant Name Type

$(1)$ Hydrilla ………………..

$(2)$ Typha ………………..

$(3)$ Nymphaea ………………..

$(4)$ Lemna ………………..

$(5)$ Vallisnaria ………………..

normal

Crop rotation is helpful because

normal

$A$ : Some organisms can maintain internal homeostasis by means of physiological processes and are called
'Regulators'.
$R$ : 'Regulators' can maintain internal homeostasis only upto a limit of stressful conditions.

normal

Plant Name	Type
$(1)$ Hydrilla	………………..
$(2)$ Typha	………………..
$(3)$ Nymphaea	………………..
$(4)$ Lemna	………………..
$(5)$ Vallisnaria	………………..

The apex of age pyramid of a stationary population is

Solution

Similar Questions

Aerenchyma is the characteristics feature of

Water logging occurs in

Crop rotation is helpful because

$A$ : Some organisms can maintain internal homeostasis by means of physiological processes and are called 'Regulators'. $R$ : 'Regulators' can maintain internal homeostasis only upto a limit of stressful conditions.

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$A$ : Some organisms can maintain internal homeostasis by means of physiological processes and are called
'Regulators'.
$R$ : 'Regulators' can maintain internal homeostasis only upto a limit of stressful conditions.