Question

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 ecosystem are ........
(e) The major reservoir of carbon on our earth is ........

• A. $a$—consumers, $b$—upright, $c$—temperature, $d$— earthworm, $e$—atmosphere
• B. $a$—producer, $b$—spindle, $c$—light, $d$—earthworm, $e$—atmosphere
• C. $a$—producer, $b$—inverted, $c$—carbon dioxide, $d$— mites, $e$—ocean
• D. $a$—producer, $b$—spindle, $c$—light, $d$—earthworm, $e$—ocean

Answer 1

Answer: (D)

• Plants are called as producer because they fix carbon dioxide.
• In an ecosystem dominated by trees, the pyramid (of numbers) is spindle type

• In aquatic ecosystems, the limiting factor for the pro ductivity is light.
• Common detritivores in our ecosystem are earthworm.
• The major reservoir of carbon on earth is ocean.