________: Probability of an organism surviving and reproducing in the environment in which it is found.
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→They
________ could cause the development of new alleles and so new phenotypes.
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Hydrophytes
________: Plants adapted to live in extremely wet conditions.
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Xerophytes
________: Plant adapted to live in extremely dry conditions.
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Heterozygous individuals
________ are said to be ‘ carriers of the sickle cell gene and are said to have ‘ sickle cell trait.
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Artificial selection
________: the intentional reproduction of animals and plants by humans that have desirable traits.
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Discontinuous Variation
________- When there are distinct differences for a characteristic (Qualitative)
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Adaptive Features
________: Inherited functional features of an organism that increase its fitness.
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sickle cell
A person that is a(n) ________ carrier has malarial protection, and will not die from ________ disease.
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Sickle cell anemia
________: caused by the mutation in a gene that codes for hemoglobin.
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Organisms
________ can pass down favourable traits to their offspring to produce more organisms with desirable characteristics.
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Natural Selection
________ is the concept that for a given environment, organisms with the most beneficial features are ‘ selected to survive and pass on their genes to the next generation.
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Variation
differences between individuals within the same species
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Genetic variation
The differences in genetics among individuals within the same species (mainly due to sexual reproduction & mutation)
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Phenotypic variation
The variability of phenotypes within a population (influenced by both the genetic & environmental factors)
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Discontinuous Variation
When there are distinct differences for a characteristic (Qualitative)
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Mutations
random genetic changes
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Sickle cell anemia
caused by the mutation in a gene that codes for hemoglobin
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Adaptive Features
Inherited functional features of an organism that increase its fitness
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Fitness
Probability of an organism surviving and reproducing in the environment in which it is found
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Hydrophytes
Plants adapted to live in extremely wet conditions
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Xerophytes
Plant adapted to live in extremely dry conditions
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Artificial selection
the intentional reproduction of animals and plants by humans that have desirable traits