Biology
Grade-10
Easy
Question
The ____________ of a particular waterbody reflects the likelihood of oxygen depletion.
- Flora
- Fish fauna
- Seal fauna
- Grasses
Hint:
The aquatic organisms that form most of the population in the water bodies.
The correct answer is: Fish fauna
Fish are cold blooded organisms (their body temperature and activities are regulated by the water that they inhabit). Warm water increases the consumption of oxygen by the fishes by accelerating their metabolic rate.
Related Questions to study
Biology
Which of the following fishes are highly sensitive to oxygen depletion?
Which of the following fishes are highly sensitive to oxygen depletion?
BiologyGrade-10
Biology
Which of the following fishes have no special means of obtaining oxygen but have high physiological resistance to oxygen depletion?
Which of the following fishes have no special means of obtaining oxygen but have high physiological resistance to oxygen depletion?
BiologyGrade-10
Biology
Which of the following fishes can obtain oxygen from the atmosphere?
Which of the following fishes can obtain oxygen from the atmosphere?
BiologyGrade-10
Biology
Fertile lakes or wetlands with less effective gas exchange with atmosphere have ____________________.
Fertile lakes or wetlands with less effective gas exchange with atmosphere have ____________________.
BiologyGrade-10
Biology
How much oxygen is held by water at high temperatures?
How much oxygen is held by water at high temperatures?
BiologyGrade-10
Biology
_____________ show a wide range of tolerance to oxygen depletion.
_____________ show a wide range of tolerance to oxygen depletion.
BiologyGrade-10
Biology
Mountain streams of high gradient have __________________.
Mountain streams of high gradient have __________________.
BiologyGrade-10
Biology
High rates of respiration in water that is in contact with sediment can remove all ________ from water within a few days.
High rates of respiration in water that is in contact with sediment can remove all ________ from water within a few days.
BiologyGrade-10
Biology
How much oxygen does water hold at low temperatures?
How much oxygen does water hold at low temperatures?
BiologyGrade-10
Biology
Which of the following is a perennial cool water lake?
Which of the following is a perennial cool water lake?
BiologyGrade-10
Biology
The family ___________ contains many species that are intolerant of waters exceeding 15–20°C.
The family ___________ contains many species that are intolerant of waters exceeding 15–20°C.
BiologyGrade-10
Biology
_____________ thresholds are weak for phytoplanktons and zooplanktons.
_____________ thresholds are weak for phytoplanktons and zooplanktons.
BiologyGrade-10
Biology
The range of temperature for _______________ is much narrower than the range for terrestrial ecosystem.
The range of temperature for _______________ is much narrower than the range for terrestrial ecosystem.
BiologyGrade-10
Biology
Which of the following is an important dimension of ecological niche for aquatic organisms?
Which of the following is an important dimension of ecological niche for aquatic organisms?
BiologyGrade-10
Biology
Ecological niches are found in which of the following types of ecosystems?
Ecological niches are found in which of the following types of ecosystems?
BiologyGrade-10
