List of top Biology Questions on organisms and populations asked in NEET (UG), KCET

What do ‘a’ and ‘b’ represent in the following population growth curve?

Match List I with List II. 

	List I		List II
A	Logistic growth	I	Unlimited resource availability condition
B	Exponential growth	II	Limited resource availability condition
C	Expanding age pyramid	III	The percent individuals of pre-reproductive age is largest followed by reproductive and post reproductive age groups
D	Stable age pyramid	IV	The percent individuals of pre-reproductives and reproductive age group are same

Choose the correct answer from the options given below:

If ‘8’ Drosophila in a laboratory population of ‘80’ died during a week, the death rate in the population is__ individuals per Drosophila per week.

While explaining interspecific interaction of population, (+) sign is assigned for beneficial interaction, (-) sign is assigned for detrimental interaction and (0) for neutral interaction. Which of the following interactions can be assigned (+) for one species and (-) for another species involved in the interaction?

Cuscuta is an example of

Which one of the following statements cannot be connected to Predation?

In the exponential growth equation $N_t=N_o e^{rt}$, e represents:

Match List - I with List - II. Choose the correct answer from the options given below.

Which of the following is not an attribute of a population ?

The process of growth is maximum during :

Between which among the following, the relationship is not an example of commensalism?

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other ?

In a growing population of a country,

Natality refers to�

Asymptote in a logistic growth curve is obtained when :

Plants which produce characteristic pneumatophores and show vivipary belong to :

Asymptote in a logistic growth curve is obtained when

Plants which produce characterstic pneumatophores and show vivipary belong to

Gause's principle of competitive exclusion states that -

If '+' sign is assigned to beneficial interaction, '-' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '-' refers to

In which type of interactions, both the interacting organisms do not live close together ?

When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1-N/K) :