In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x(kcalm–2)yr–1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
Long term ecosystem experiment using out door plots
C.
Paul Ehrlich
III.
Global species diversity at about 7 million
D.
David Tilman
IV.
Rivet popper hypothesis
Choose the correct answer form the options given
below:
Explanation:
Robert May -NCERT Page No.217.
Alexander von Humboldt -NCERT Page No.220.
Paul Ehrlich-NCERT Page No.221.
David Tilman -NCERT Page No.221.
Read the following statements and choose the set of correct statements:
In the members of Phaeophyceae,
A. Asexual reproduction occurs usually by biflagellate zoospores.
B. Sexual reproduction is by oogamous method only.
C. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
D. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.
Choose the correct answer from the options given below:
How many molecules of pyruvic acid are produced at the end of glycolysis from 206 molecules of glucose?
Each molecule of glucose produces two molecules of pyruvic acid during glycolysis. Therefore, 206 glucose molecules produce 412 pyruvic acid molecules.
Which of the following are characteristic features of Solanaceae family?
(a) Flowers are bisexual and actinomorphic
(b) Calyx have five sepals and are united
(c) Androecium have five stamens and are epipetalous
(d) Ovary is inferior
Choose the correct answer from the options given below:
Solanaceae flowers are bisexual, actinomorphic, pentamerous, epipetalous and possess a superior ovary.