Organisms and Populations

The following graph depicts changes in two populations (A and B) of herbivores in a grassy field. A possible reason for these changes is that?

The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do A, B and C represent respectively?

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

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Abingdon tortoise in Galapagos islands became extinct within a decade after goats were introduced.…

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : A person goes to high altitude and experiences "Altitude Sickness" with symptoms like breathing…

Match List I with List II: List I (Interacting species) List II (Name of Interaction) A.A Leopard and a Lion in a forest/grassland I.Competition B. A Cuckoo laying egg in a Crow's nest II.Brood parasitism C.Fungi and…

Match Column - I with Column - II Column-I Column-II $\left(a\right)$ Saprophyte $\left(i\right)$ Symbiotic association of fungi with plant roots $\left(b\right)$ Parasite $\left(ii\right)$ Decomposition of dead organic…

Match List-I with List-II. List-IList-IIA. Both species are harmedI. PredationB. One species is harmed and the other is benefitedII. MutualismC. Both species are benefitedIII. CompetitionD. One is benefited while the…

Niche is

Match the items in Column$-I$ with those in Column$-\mathrm{II}$: Column$-I$ Column$-\mathrm{II}$ (a) Herbivores-Plants (i) Commensalism (b) Mycorrhiza-Plants (ii) Mutualism (c) Sheep-Cattle (iii) Predation (d)…

Match the following and select the correct option: (a) Earthworm (p) Pioneer species (b) Succession (q) Detrivore (c) Ecosystem service (r) Natality (d) Population growth (s) Pollination

Match List I with List II: List I List II A. Logistic growth I. Unlimited resource availabilitycondition B. Exponential growth II. Limited resource availabilitycondition C. Expanding age pyramid III. The percent…