Pentathlon_Section 2 (SCIENCE)

What is the most common measure of biological diversity in a given place?

• Number of genes

• Number of species

• Number of ecosystems

• Number of biomes

What does genetic diversity refer to?

• Variety of ecosystems

• Variety of species

• Variety of genes

• Variety of biomes

Which of the following is NOT a major element covered in the section on biodiversity?

• Evolution and Biodiversity

• Community Ecology

• Space Exploration

• Global Energy and Matter Cycles

What is the role of biomes in biodiversity?

• They are the smallest unit of biodiversity.

• They create geographic regions distinguished by dominant forms of plants and animals.

• They measure the number of species in an area.

• They are the chemical building blocks of life.

What is the ultimate source of biodiversity on Earth?

• Genetic diversity

• Climate change

• Human intervention

• Ocean currents

What is the result of evolution according to the text?

• Increased population size

• Changes in genes among individuals

• Decreased biodiversity

• Constant body plans

What is a phenotype?

• The genetic code of an organism

• The physical and behavioral characteristics of an organism

• The number of chromosomes in a cell

• The process of evolution

What is a mutation?

• A new species formation

• An error in copying genetic material

• A type of chromosome

• A form of genetic diversity

Diagram showing pea plants with different genotypes (BB, Bb, bb) and their corresponding flower colors.

• BB - Purple, Bb - Purple, bb - White

• BB - White, Bb - Purple, bb - Purple

• BB - Purple, Bb - White, bb - Purple

• BB - White, Bb - White, bb - Purple

What is the term used to describe the observable characteristics associated with an organism's genotype?

• Evolution

• Fitness

• Phenotype

• Mutation