Which statement best describes the relationship between lake zones and light penetration? Light penetrates fully to the bottom in all lake zones. The Littoral Zone receives light to the bottom, while the Open Water Zone does not. Light penetration is primarily determined by the depth of the Benthic Zone. The Open Water Zone is defined by its complete lack of light.

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Which statement best describes the relationship between lake zones and light penetration?

Light penetrates fully to the bottom in all lake zones.
The Littoral Zone receives light to the bottom, while the Open Water Zone does not.
Light penetration is primarily determined by the depth of the Benthic Zone.
The Open Water Zone is defined by its complete lack of light.

Aii only

Biv only

CAll

Dii, iii

Answer:

Littoral zone - This is the shallow water zone, near the shore, where light penetrates to the bottom. Rooted plants can grow only in this region.
Open Water Zone - This zone extends beyond the littoral zone and is too deep for light to penetrate till the bottom and for rooted plants to grow.
Benthic Zone - This zone forms the floor of the lake and underlies the littoral and limnetic zone.

Related Questions:

Select the statements that accurately define Nekton.

Nekton are organisms that passively drift with water currents.
This group consists of animals capable of swimming, possessing the strength to overcome water currents.
Nekton are generally small and have limited mobility.
The size of Nekton ranges from tiny swimming insects to the largest marine mammals like the blue whale.

How are carnivores categorized based on their feeding habits?

Primary carnivores are second-order consumers that feed on herbivorous animals.
Secondary carnivores are third-order consumers that prey upon primary carnivores.
Tertiary carnivores, also known as quaternary consumers, feed on secondary carnivores and are generally not eaten by other animals.
Top carnivores are large carnivores that cannot be preyed upon further by any other animals.

ആവാസവ്യവസ്ഥയുമായി ബന്ധപ്പെട്ട ശരിയായ പ്രസ്താവനകൾ ഏതാണ് ?

i) ഒരു ആവാസവ്യവസ്ഥയിൽ ജീവീയഘടകങ്ങളും അജീവീയഘടകങ്ങളും ഉൾപ്പെടുന്നു.

ii) ജീവികളും അവയുടെ ചുറ്റുപാടും തമ്മിലുള്ള പരസ്പരബന്ധത്തെ കുറിച്ചുള്ള പഠനമാണ് ആവാസവ്യവസ്ഥ.

iii) ഒരു ജീവി ജീവിക്കുന്ന പ്രകൃതിദത്തമായ ചുറ്റുപാടിനെ ആവാസം എന്നുപറയുന്നു.

iv) ഒരു ആവാസവ്യവസ്ഥയിലെ ഭക്ഷ്യശൃംഖലയിൽ ആദ്യത്തെ കണ്ണി എപ്പോഴും മാംസഭോജിയായിരിക്കും.