Which one of the following is not observed in biodiversity hot spots?
Endemism
Accelerated species loss
Lesser interspecific competition
Lesser interspecific competition
C.
Lesser interspecific competition
Hot spots are areas that are extremely rich in species diversity, have high endemism and are under constant threat. The key criteria for determining a hot spot are a number of endemic species, and degree of threat, which is measured in terms of habitat globally with an approximate area of 1.4%. Among the 25 hot spots, 2 are found in India, ie, Western Ghat and Eastern Himalayas. These areas are particularly rich in floral wealth and endemism not only in flowering plants but also in reptiles, amphibians, swallow-tailed butterflies and some mammals.
Consider the following four statement (A-D) about certain desert animals such as kangaroo rat
A) they have a dark colour and high rate of reproduction and excrete solid urine.
B) they do not drink water, breathe at a slow rate of conserve water and have their body covered with thick hairs.
C) they feed on dry seeds and do not require drinking water.
D) they excrete very concentrated urine and do not use water to regulate body temperature.
Which two of above statement for such animals are true?
C and D
B and C
C and A
C and A
A.
C and D
Kangaroo rat is a desert rodent. Its body is covered by hairs. Its urine is more than 20 times concentrated as its plasma. This concentrated waste enables it to live in a dry or desert environment where little water is available for him to drink. Most of its water is metabolically produced from the oxidation of carbohydrates, fats and proteins in the seeds that it eats. The animals remain in a cool burrow during day time and the respiratory moisture condensed in nasal passages.
Identify the odd combination of the habitat and the particular animal concerned
Dachigam National park - Snow Leopard.
Sunderbans - Bengal Tiger
Periyar - Elephant
Periyar - Elephant
A.
Dachigam National park - Snow Leopard.
Dachigam National Park is situated near Dal Lake in Jammu & Kashmir. It is known for conservation of the most endangered Hangul or Kashmir stag in paramount.
Which one of the following ecosystem types has the highest annual net primary productivity?
Tropical rain forest
Tropical deciduous forest
Temperate evergreen forest
Temperate evergreen forest
A.
Tropical rain forest
Productivity of tropical rainforest is highest. The tropical rain forest covering 300,000 km2 area. They contain more than 50% of total flora and fauna of the world.
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