It allows quick delivery of fully oxygenated blood at high pressure while protecting delicate lung capillaries

It compensates for low oxygen levels by increasing the heart rate and blood volume

It uses a single circuit that recirculates oxygenated blood multiple times before distribution

It balances oxygen and carbon dioxide levels by direct mixing in the heart chambers

Cell division

DNA replication

RNA degradation

Protein synthesis

Replication

Transcription

Translation

Translocation

Ribosome

Helicase

RNA polymerase

DNA polymerase

It indicates that all proteins are identical

It allows for the same protein to be produced in different organisms

It shows that genetic mutations are rare

It means all organisms have the same DNA

Cellular respiration

Structural support

Genetic information transfer

Energy storage

Right to left

3' to 5'

Left to right

5' to 3'

tRNA

mRNA

sRNA

rRNA

Glucose

Deoxyribose

Ribose

Fructose

Used to form new organisms

Lost from the ecosystem as heat

Passed entirely to consumers

Stored in fossil fuels