bio battle sheet

Theory of Evolution

Proposed by Darwin, suggesting that all species descended from a common ancestor and changed through natural selection.

Genetic Diversity

The variety of different species within a certain area.

Dichotomous Keys

Tools for identifying organisms by dividing them based on common characteristics.

Viruses

Entities that cause diseases, consisting of DNA/RNA and a protein coat, requiring a host for reproduction.

Prokaryotes

Single-celled organisms without a nucleus, including bacteria.

Biodiversity Threats

Factors such as global warming, habitat loss, pollution, overexploitation, invasive species, and exotic pet trade that threaten biodiversity.

Mitosis

A process of cell division that results in two identical daughter cells used for growth and repair.

Meiosis

A type of cell division that reduces the chromosome number by half and results in the formation of gametes.

Incomplete Dominance

A genetic situation where neither allele is completely dominant, resulting in a blended phenotype.

Chromosomal Inheritance Theory

The concept that chromosomes carry genes, and during meiosis, these chromosomes assort independently.

Pedigrees

Charts that track genetic traits through generations, helping to determine dominant or recessive traits.

Plant Benefits

Plants provide food, pharmaceuticals, fuel, and play significant roles in industry and recreation.

Ecosystem Succession

The process by which plant communities evolve over time, including primary and secondary succession.

Vascular Tissues

Plant tissues, including xylem and phloem, responsible for transporting water, minerals, and nutrients.

Plant Growth Hormones

Chemical messengers like auxins and gibberellins that regulate various aspects of plant growth.

Macroevolution

Large-scale evolutionary changes that lead to the emergence of new species, often observed in the fossil record.

Cladogram

A diagram that shows the evolutionary relationships among a group of organisms based on shared characteristics.

Stromatolites

Fossilized layers of bacteria that provide evidence of early life on Earth.

Natural Selection

The process where organisms better adapted to their environment tend to survive and produce more offspring.