1 / 3

Lecture 5 Animal Evolution – The Invertebrates

Lecture 5 Animal Evolution – The Invertebrates. 6 important adaptations that contributed to the success of arthropods:. hardened exoskeleton joint appendages highly modified & specialized segments respiratory structures specialized sensory structures specialized developmental stages.

boone
Télécharger la présentation

Lecture 5 Animal Evolution – The Invertebrates

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lecture 5Animal Evolution – The Invertebrates

  2. 6 important adaptations that contributed to the success of arthropods: • hardened exoskeleton • joint appendages • highly modified & specialized segments • respiratory structures • specialized sensory structures • specialized developmental stages.

  3. i. Hardened exoskeleton • cuticle made of chitin, proteins & waxes with calcium carbonate deposits. • Cuticle; a protective external skeleton (exoskeleton). • cuticle could have evolved to escape predation. • waxy surface limits water loss. • hard cuticles restrict size increases; arthropods grow in spurts by molting.

More Related