So, hair is believed to have evolved in therapsids as an adaptation for insulation, but modern mammals have adapted hair for several other purposes. Why?

Discuss the evolution of the tetrapod integument using the Diagram given as your guide.

Which areas of the rat’s body are not covered with hair?

Using the Diagram as your guide: Discuss the evolution of the tetrapod integument What are the similarities and differences in feather and hair development

What is the adaptive significance of the different skin derivatives of the major group of animals?   own words please

List one function of skin that is common to all animals andone that is unique to a single group.

The squid light organ has structural and functional similarities to an eye, including the ability to detect light.Explain why it is important to the squid’s survival to be able to detect light as well as emit it.

Bristle-like structures that provide traction for annelids are called O chaetae O cilia O hair cells

This fluid-filled structure is spiral shaped, with lower-pitched sounds traveling further down the spiral.   ossicles   tympanic membrane   cochlea   semicircular canal   hair cells

Botox is a toxin produced by the bacterium Clostridium botulinum. When ingested with tainted food, Botox can kill by paralyzing muscles needed for breathing and heartbeat. Physicians inject small quantities of diluted Botox into facial muscles to paralyze them and reduce the appearance of wrinkles. Some people have expressed concern about a trend in which people come together for “Botox parties” at hair salons and other nonmedical settings. What are the risks of getting injections in such a setting?