Nature & ecology
Why is a small cell easier to supply?
As cells grow, internal demand can rise faster than the surface available for exchange.
Science & natureCategory
Nature & ecology
Plants, animals, ecosystems, biodiversity, and the connections between them.
Nature & ecology
The partnership between a root and a fungus
Many plants obtain resources through an association with fungi in the soil.
Nature & ecology
Why counting species is only a beginning
A place’s variety of life includes more than a list of names.
Nature & ecology
How can one bacterial cell become two?
Binary fission copies the chromosome and divides the cell.
Nature & ecology
How a pollutant can become concentrated up a food chain
Some persistent substances accumulate as predators consume contaminated prey.
Nature & ecology
Why can bacteria carry extra circles of DNA?
Plasmids are DNA molecules separate from the main bacterial chromosome.