What is the role of these bacteria in the nitrogen cycle?
Some bacteria live in the roots of plants like soybeans
and peas
to absorb nitrogen-containing compounds from the soil
to release free nitrogen into the atmosphere
to break down nitrogen-containing compounds in dead
organisms
to convert free nitrogen into usable nitrogen
image by Ninjatacosheli
HEOL
a
s

then that particular organisms become extinct.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.