A - Unity and Diversity Questionbank

They have identical DNA sequences

They share similar observable traits and structure

They live in the same geographical area

They can interbreed and produce fertile offspring

Two plants can be easily distinguished by leaf shape

Fossilized organisms cannot be tested for reproductive compatibility

Two dogs produce fertile puppies

Asexual bacteria exhibit high mutation rates

Increased water vapor in air spaces

Capillary movement of water in plant cell walls

Blockage of transpiration in xylem

Loss of cohesion during evaporation

Populations must first evolve new organs

Gene flow always increases during divergence

Speciation is often gradual, with no clear boundary between species

Species definitions are constant across all biological disciplines

Increased groundwater recharge

Reduction in native bird populations

Loss of breeding sites for amphibians

Lower water quality due to runoff

Temporal isolation, where populations breed at different times.

Behavioral isolation, where differences in courtship rituals prevent mating.

Geographic isolation, where physical barriers separate populations.

Ecological separation within a habitat where interbreeding is still common.

Rough ER

Golgi apparatus

Smooth ER

Nucleus

Female with a normal set of chromosomes

Male with Down syndrome

Female with Down syndrome

Male with a normal set of chromosomes

Energy storage

Enzymatic activity

Oxygen uptake

Thermal insulation

A centromere

A nucleosome

A ribosome

A polysome