Variation/Genes/Inheritance/Classification (Inheritance (Some…
Characteristic features can be inherited (from our parents) or caused by our enviroments
Environmental causes (eg weight)
This be any value (eg. height)
grouped (Eye colour)
Some characteristics are dominant, and some are recessive. You can tell what a characteristic is like by studying the results of breeding experiments.
In humans and other mammals, gender is controlled by a pair of sex chromosomes. Females have two X chromosomes, XX. Males have one X and one Y chromosome, XY.
The first big division of living things in the classification system is to put them into one of five kingdoms. These are based on what an organism's cells are like. The table shows the names of the kingdoms and examples of the sort of organisms they contain.
All green plants