SAMAKI

Samaki ni wanyama wenye damu baridi wanaoishi kwenye maji ya mito, mabwawa, maziwa au bahari. Wote ni vertebrata, yaani huwa na uti wa mgongo.

Wanatumia oksijeni iliyomo ndani ya maji kwa kuyavuta kwenye mashavu yao.

Kuna aina nyingi za samaki wadogo wenye urefu wa sentimita moja na wakubwa wenye urefu hadi mita 15. Ila tu viumbe wakubwa kwenye maji si samaki bali nyangumi ambao ni mamalia.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s