The branch of biology concerned with the study of insects is:
A. Ichthyology
B. Entomology
C. Herpetology
D. Ornithology
Answer: Option B
Solution (By JKSSB Mock Tests)
Entomology is the study of insects. Ichthyology is fish, herpetology reptiles and amphibians, ornithology birds. Insects are the most diverse group of animals.
Explanation:
Lactate dehydrogenase (LDH) reduces pyruvate to lactate using NADH, regenerating NAD⁺ for glycolysis under anaerobic conditions. Pyruvate decarboxylase is in alcoholic fermentation, alcohol dehydrogenase converts acetaldehyde to ethanol, pyruvate kinase is in glycolysis.
Explanation:
The Competitive Exclusion Principle, formulated by G.F. Gause based on his experiments with Paramecium, states that two species with identical ecological niches (competing for the exact same limited resources) cannot coexist indefinitely in the same habitat. One species will inevitably have a slight reproductive advantage and will outcompete the other, leading to the local extinction or evolutionary shift (resource partitioning) of the inferior competitor.
Explanation:
G.H.A. Hansen discovered Mycobacterium leprae in 1873, the first bacterium identified as causing a human disease. Koch later discovered TB.
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