Q. 1 A4.4( 46 Votes )
Fill in the blanks.
A. Plants are called as ____________ because they fix carbon dioxide.
Auto means self and trope means nourishing. So, since plants can synthesise their own food through the process of photosynthesis they are termed as autotrophs.
Rate this question :
(a) Following are the responses of different animals to various abiotic factors. Describe each one with the help of an example.
(b) If 8 individuals in a population of 80 butterflies die in a week, calculate the death rate of population of butterflies during that period.
(a) What is a trophic level in an ecosystem? What is ‘standing crop’ with reference to it?
(b) Explain the role of the ‘first trophic level’ in an ecosystem.
(c) How is the detritus food chain connected with the grazing food chain in a natural ecosystem?Biology - Board Papers
Justify the pitcher plant as a producer.Biology - Exemplar
Given below is a figure of an ecosystem. Answer the following questions.
i. What type of ecosystem is shown in the figure.
ii. Name any plant that is characteristic of such ecosystem.
Biology - Exemplar
Is the common edible mushroom an autotroph or a heterotroph?Biology - Exemplar
Arrange the following as observed in vertical stratification of a forest: Grass, Shrubby plants, Teak, Amaranths.Biology - Exemplar
What is the ultimate source of energy for the ecosystems?Biology - Exemplar
How do you distinguish between humification and mineralisation?Biology - Exemplar
Give two examples of artificial or man made ecosystems. List the salient features by which they differ from natural ecosystems.Biology - Exemplar
Is an aquarium a complete ecosystem?Biology - Exemplar