Structural features that make these compounds resistant to microbial degradation include

1. substitution of H by other groups

2. heterocyclic compounds

3. branched linear chains

Which of the above are correct?

#Question id: 11280

#XL - R Botany

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

#Question id: 11281

#XL - R Botany

Owls eat rats, mice, shrews, and small birds. Assume that, over a period of time, an owl consumes 5,000 J of animal material. The owl loses 2,300 J in feces and owl pellets and uses 2,500 J for cellular respiration. What is the production efficiency of this owl?

#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?