Consider the following statements regarding the process of decomposition in an ecosystem:
I. Decomposition rate is independent of environmental factors like temperature and moisture.
II. Detritivores play a crucial role in fragmenting organic matter, increasing the surface area for microbial action.
III. Decomposition leads to the release of nutrients back into the ecosystem.
IV. Decomposition only occurs in aerobic conditions.
Which of the above statements are correct?
I and II only
II and III only
I, III and IV only
II, III and IV only
Related Questions
250 g of bacterium has been used to produce
100 g of protein
150 g of protein
200 g of protein
250 g of protein
Single cell proteins refers to
A specific protein extracted from pure culture of single type of cells
Sources of mixed proteins extracted from pure or mixed culture of organisms or cells
Proteins extracted from a single cell
A specific protein extracted from a single cell
A potential concern related to SCP consumption is:
High cholesterol content
Allergic reactions in some individuals
Lack of essential amino acids
Low digestibility
Which of the following is incorrect w.r.t SCP?
Quantitative and qualitatively superior proteins
Production involves utilization of organisms which has high rate of biomass production and growth
250 g Methylophilus methylotrophus can produce 20 tonnes of protein per day
Can be obtained from both unicellular and multicellular organisms
SCP is a good source of:
Carbohydrates and fats
Proteins, vitamins, and minerals
Nucleic acids only
Fiber and water
Majority of people suffer from protein, vitamins and micronutrient deficiencies. Their food does not contain essential micronutrients specially
I. iron
II. iodine
III. zinc
IV. vitamin-A
Which of the above are correct?
I, II and III
I, III and IV
II, III and IV
I, II, III and IV
What is the relationship between species richness and community stability?
Always positive, more species always means more stability
Generally positive, greater richness often leads to greater stability
No relationship, richness and stability are independent
Generally negative, more species leads to more competition and instability
Microbes like Spirulina can be grown on material like
I. waste water from potato processing plants
II. straw
III. animal manure and sewage
IV. molasses
Choose the correct option
I and II
I, II and III
II, III and IV
I, II, III and IV
A hypothetical organism exhibits a unique life cycle. The diploid sporophyte produces haploid spores through meiosis. These spores develop into a multicellular gametophyte that produces gametes through mitosis. If a mutation occurs in a somatic cell of the sporophyte, which of the following is most likely?
The mutation will be passed on to all gametes.
The mutation will be passed on to some gametes.
The mutation will be passed on to the spores.
The mutation will not be passed on to the gametes.
A species of beetle exhibits aposematic coloration. This coloration is MOST likely an adaptation to:
Attract mates
Camouflage itself from predators
Warn predators of its toxicity
Enhance its ability to thermoregulate
