EOC Biology Review Assignment

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What is natural selection?

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Natural selection is the process by which organisms that are better adapted to their environment tend to survive and produce more offspring. This leads to the gradual evolution of species.

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Define adaptation in biology.

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Adaptation refers to the process by which a species becomes better suited to its environment through changes in its physical or behavioral traits.

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What is the role of symbiotic bacteria in termites?

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Symbiotic bacteria in termites help break down wood fibers, allowing termites to digest cellulose, which they cannot do on their own.

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What is the definition of mutualism?

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Mutualism is a type of symbiotic relationship where both species benefit from the interaction.

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What are hydrogen bonds?

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Hydrogen bonds are weak attractions between a hydrogen atom and an electronegative atom, crucial for holding the two strands of DNA together.

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Explain the concept of dominant and recessive traits.

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Dominant traits are expressed in the phenotype even if only one allele is present, while recessive traits are expressed only when two copies of the allele are present.

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What is a Punnett square used for?

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A Punnett square is a diagram used to predict the genetic outcomes of a cross between two organisms.

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Define the term 'kingdom' in biological classification.

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A kingdom is a high-level taxonomic category that groups together all forms of life that share fundamental traits.

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What is the significance of variation in a population?

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Variation in a population is crucial for natural selection, as it provides the raw material for evolution and adaptation.

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What does it mean for a trait to be homozygous?

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A trait is homozygous when an organism has two identical alleles for a specific gene.