The correct option is this: Males of one species perform orchestrated dances and sing songs that only attract females of the same species.
Ecological isolation refers to the sexual practice among living organisms, in which populations of living organisms occupy the same ecology or region but live in different habitats and refrain from inter species sexual relationships. There are five types of isolation, these are: ecological, temporal, mechanical, behavioral and geographical isolation.
Behavioral isolation is said to occur when two allopatric species living in the same territory refraining from inter breeding as a result of differences in courtship behaviors.
Answer:
chemical that target the cells is 18. example endocrine gland eg.prosterior pituitary , hormone eg. ADH , target tissue eg. kidney
The criterion for categorizing epithelia as simple, stratified, or pseudostratified is the Arrangement of cells
The name "pseudostratified" refers to the way this epithelium appears in the section, which gives the false impression (pseudo meaning almost or approaching) that there are more than one layer of cells present while, in fact, all of the cells are resting on the basement membrane.
The respiratory airways are where pseudostratified columnar epithelia are most frequently observed. Cilia are present on the apical surface of these cells. Cilia are fluid-moving cells that beat in unison to move fluid in a fixed direction. The so-called pseudostratified epithelium is a unique variety of single columnar epithelium. Its name was taken from the way it looked.
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