1. Fill in the blanks.

(a) Plants are called as_________because they fix carbon dioxide.

(b) In an ecosystem dominated by trees, the pyramid (of numbers) is_________type.

(c) In aquatic ecosystems, the limiting factor for the productivity is_________.

(d) Common detritivores in our ecosystem are_________.

(e) The major reservoir of carbon on earth is_________.


(a) Plants are called as autotrophs because they fix carbon dioxide.

(b) In an ecosystem dominated by trees, the pyramid (of numbers) is of inverted

type.

(c) In aquatic ecosystems, the limiting factor for productivity is light.

(d)Common detritivores in our ecosystem are earthworms.

(e) A major reservoir of carbon on Earth is oceans.