C. Lamarck proposed the theory of natural selection.
D. The human appendix is a homologous organ.
Answer: Option A
Solution (By JKExamLibrary)
Fossils are direct evidence showing transitional forms. Lamarck proposed use and disuse, not natural selection. Analogous organs do not indicate common ancestry; homologous do. Appendix is vestigial.
Explanation:
Guttation is the exudation of water droplets from hydathodes, driven by root pressure under high humidity and low transpiration conditions.
Explanation:
Certain bacteria, like Bacillus megaterium and Alcaligenes eutrophus, accumulate polyhydroxyalkanoates (PHA) such as PHB as intracellular carbon and energy storage under nutrient stress. These are used to make biodegradable plastics. E. coli is engineered for some bioplastics, but natural producers include Bacillus.
Explanation:
Genetics is the science of heredity and variation, explaining how traits are passed from parents to offspring and why individuals differ. Ecology studies organisms and environment, embryology deals with development, paleontology with fossils. Gregor Mendel is the father of genetics. The term 'genetics' was coined by William Bateson.
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