A forest ecosystem experiences a drastic decline in insect-eating bird populations. Within months, crop-damaging insects increase significantly. What is the most appropriate conclusion?, Birds play a minor role in ecosystems, Insects are the main producers, The ecosystem balance is disrupted due to the loss of predators, Plants have adapted to environmental changes, Birds are primary producers, Two ecosystems have the same number of species, but ecosystem A has higher genetic variation than ecosystem B. What is the implication?, Ecosystem A is more vulnerable to environmental change, Ecosystem B is more stable in the long term, Ecosystem A has a better ability to adapt, Ecosystem B has higher biodiversity, Both ecosystems have equal resilience, If a keystone species disappears from an ecosystem, what is the most likely outcome?Two ecosystems have the same number of species, but ecosystem A has higher genetic variation than ecosystem B. What is the implication?, No significant changes occur, Genetic diversity increases, The community structure changes drastically, All species go extinct, The ecosystem becomes more stable, A researcher finds two plants with very similar morphology but significantly different DNA sequences. What is the most appropriate conclusion?, They must be the same species, The difference is only environmental, They are likely different species, DNA does not affect classification, Morphology is always more important than genetics, Large-scale conversion of forests into agricultural land affects biodiversity because it:, Increases species variation, Reduces natural habitats, Increases the number of producers, Stabilizes food chains, Accelerates evolution in all species, Excessive use of pesticides can reduce biodiversity because it:, Selectively kills all organisms, Disrupts food chains and harms non-target species, Increases adaptation in all organisms, Adds genetic variation, Stabilizes ecosystems, Why does Indonesia have high biodiversity?, It is far from the equator, It has a single climate type, It is located in the tropics with diverse ecosystems, It has no mountains, It has low rainfall, If a population has low genetic diversity, what is the most likely consequence?, More resistant to disease, Greater adaptability, More vulnerable to environmental changes, Rapid population growth, No natural selection occurs

Biodiversity

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