Think and answer.(a) We prepare a variety of foodstuffs and dishes at home. Are we then autotrophic organisms ?(b) Which organisms are greater in number - autotrophs or heterotrophs ? Why?(c) The number of heterotrophs found in desert regions is smaller. However, they are found in greater numbers in the sea. Why is this so ?(d) What damage or harm do ectoparasitic and endoparasitic animals cause ?(e) Why is plant food not produced in any other parts of the plant except the green ones ?

Think and answer.(a) We prepare a variety of foodstuffs and dishes at

1.	Think and answer.(a) We prepare a variety of foodstuffs and dishes at home. Are we then autotrophic organisms ?(b) Which organisms are greater in number - autotrophs or heterotrophs ? Why?(c) The number of heterotrophs found in desert regions is smaller. However, they are found in greater numbers in the sea. Why is this so ?(d) What damage or harm do ectoparasitic and endoparasitic animals cause ?(e) Why is plant food not produced in any other parts of the plant except the green ones ?
Answer» Think and answer. (a) We prepare a variety of foodstuffs and dishes at home. Are we then autotrophic organisms ? (b) Which organisms are greater in number - autotrophs or heterotrophs ? Why? (c) The number of heterotrophs found in desert regions is smaller. However, they are found in greater numbers in the sea. Why is this so ? (d) What damage or harm do ectoparasitic and endoparasitic animals cause ? (e) Why is plant food not produced in any other parts of the plant except the green ones ?