During which phases of the cell cycle do the chromosomes exist in a doubled state?

#Question id: 10884

#SCPH06 I Botany

Herbivore ingests plant material with 1000 k j energy form producer and 300 kJ loss as feces waste; additionally herbivore invests 300 k j energy in respiration. What is production efficiency of that herbivore?

#Question id: 10884

#SCPH28 | Zoology

Herbivore ingests plant material with 1000 k j energy form producer and 300 kJ loss as feces waste; additionally herbivore invests 300 k j energy in respiration. What is production efficiency of that herbivore?

#Question id: 10885

#SCPH06 I Botany

In a field experiment, autotrophs are provided a 14C-labelled carbon compound for photosynthesis. Radioactivity (14C) levels were then monitored at regular intervals in all the trophic levels. In which ecosystem is the radioactivity likely to be detected in longer time at the higher trophic level?

#Question id: 10885

#SCPH28 | Zoology

In a field experiment, autotrophs are provided a 14C-labelled carbon compound for photosynthesis. Radioactivity (14C) levels were then monitored at regular intervals in all the trophic levels. In which ecosystem is the radioactivity likely to be detected in longer time at the higher trophic level?

#Question id: 10886

#SCPH06 I Botany

Much greater proportion of energy fixed by autotrophs is transferred to the herbivore level in the open ocean ecosystem than in a forest ecosystem because

#Question id: 10886

#SCPH28 | Zoology

Much greater proportion of energy fixed by autotrophs is transferred to the herbivore level in the open ocean ecosystem than in a forest ecosystem because