#Question id: 11282
#XL - R Botany
Which of the following ecosystems would likely have the largest net primary productivity per hectare and why?
#Question id: 11283
#XL - R Botany
Herbivore ingests plant material with 1000 k j energy form producer and assimilated only 200 k J energy in their blood stream; additionally herbivore invests 120 k j energy in their maintenance. What is production efficiency of that herbivore?
#Question id: 11284
#XL - R Botany
Which of the following could qualify as a top-down control on a grassland community?
#Question id: 11285
#XL - R Botany
Terrestrial herbivores are animals that eat only plants and their digestive systems contain microbes that aid in the digestion of cellulose, Carnivores eat primarily animal flesh or fluids. Which of the following is correct is correct statement?
#Question id: 11286
#XL - R Botany
Consumption, assimilation, and production efficiencies are measures of ecological efficiency. Following some statements are correct?
(A) Consumption efficiencies for carnivores are typically higher than those of herbivores
(B) Assimilation efficiencies of herbivore are often less than consumption efficiencies
(C) Vertebrates tend to have lower production efficiencies than invertebrates
#Question id: 11289
#XL - R Botany
Consumption efficiency (CE) is the proportion of production at one trophic level (Prodn n-1) that is eaten by, or ingested, by the next trophic level (In) but Assimilation efficiency (AE) is the proportion of ingested energy assimilated in to blood stream
Which of the following is incorrect statement?
A) In terrestrial herbivore, AE is greater than CE
B) In aquatic herbivore AE is equal to CE
C) CE of grass land herbivore is often greater than forest herbivore
D) AE of herbivore is often greater than carnivore