Z Chromosome
A chromosome found in birds that is similar to the X chromosome in other mammals.
Zeatin
A type of plant hormone found in the endosperm of maize fruits.
Zero Order Reaction
A type of chemical reaction where the concentration of each reactant has no effect on the speed of the reaction.
Zonation
The subclassifcation of biomes into smaller zones that share unique physical characteristics, and thus each provide a unique habitat that will favour various species which will in turn exist in these zones.
Zone
A specified area.
Zoogamy
Pertaining to sexual reproduction in animal species.
Zoology
The dedicated study of animals.
Zooplankton
Zooplankton are animal plankton that exist in aquatic communities. They usually live in harmony with phytoplankton, who make up the plant plankton in the community.
Zygote
The fusion of two haploid gametes with the consequential creation of a diploid zygote cell, which can raplidy multiply after this fertilisation of fusion of genetic material occurs.
