Last seen: Jul 5, 2023
(a) X is sunlight energy and Y is chemical energy. (b) The photosynthesis takes place in the following three steps: (i) Absorption of sunlight en...
(a) A nutrient can be defined as a substance which an organism obtains from its surroundings and uses it as a source of energy or for the biosynthesis...
(a) Those organisms which cannot make their own food from inorganic substances like carbon dioxide and water, and depend on other organisms for their ...
(a) Autotrophs are those organisms which can make their own food from carbon dioxide and water. Example: Green Plants. (b) The conditions necessa...
(a) The criteria to decide whether something is alive is the movement. (b) The basic functions performed by living organisms to maintain their life...
(a) Chlorophyll is a green coloured pigment present in the leaves of plants. It helps in absorbing energy from sunlight during the process of photosyn...
(a) Autotrophs. (b) Heterotrophs. (c) Autotrophs, heterotrophs. (d) Carbon dioxide, water. (e) Starch.
Digestive enzymes.
Small intestine.
Anus undigested food is thrown out.
Large intestine.
The digested food - Villi.
Oesophagus.
Peristaltic movement.
(i) Small Intestine. (ii) Large Intestine.
Salivary amylase is present in human saliva. It digests starch. Which of the organs perform the following functions in humans: (i) Absorption of ...
Paramecium.
Amoeba has no fixed place for egestion. The undigested food gets collected inside amoeba, then its cell membrane suddenly ruptures and the undigested ...
Digestive enzymes.