Answer:
A dichotomous key is a tool created by scientists to help scientists and laypeople identify objects and organisms. ... Dichotomous keys are very useful because they allow non-expert users to identify organisms by directing them to look at the known, important organisms.
Maybe you could drop a ball?
The group of tissue that work together to do a specific job is called ORGAN
One of the changes in development and specialization that did not happen in primitive mammals was the increase in stomach capacity. The specialization of teeth and the lower jaw are two important modifications of the primitive mammals. Also an increase in size and brain capacity are two crucial modifications of the early mammals.
F1 stands for first filial (daughter) generation
<span>F2 stands for second filial (daughter) generation</span>