April 18, 2016

Frog Dissection?

I have to answer questions on a frog dissection.
1. The frog’s senses are located on the top of the head. How does this help the frog when it is in the water?
2. How is a frog’s tongue designed for the insects that it eats?
3. I need some really good diagrams of the internal and external anatomy of a frog if anybody has one.
Thanks!!
4. List three adaptations that permit the frog to live on land successfully.
5. List three adaptations that permit the frog to live in water successfully.
4. List three adaptations that permit the frog to live on land successfully.
5. List three adaptations that permit the frog to live in water successfully.

Comments

padley7411

1- it helps because the frog’s head enters a new environment first, and thus can detect any potential hazards before the rest of the body is exposed.

2- the saliva is very sticky and it had papillae that increase the surface area of the tongue so the bug sticks better.

3-
http://www.lookd.com/frogs/frog3.jpg
http://universe-review.ca/I10-82-frog.jpg
http://darwin.baruch.cuny.edu/gelfond/Bio1005/class-2-frog.htm

4-
1) respiratory system includes lungs to allow it to breathe on ground.
2) its skin is adapted to avoid dehydration when out of the water.
3)Legs allow it to walk and hunt on land.

5-
1) respiratory system includes gills that allows it to absorb oxigen from water
2) smooth skin allows for smooth glide-like swimming in water
3) dactilia are webbed on both hands and feet which allow for powerful rowing when swimming.

Cheers.

mwm0788

The fact sense organs are on top of the head helps several ways. The tympanum (eardrum)also allows air pressure to be equalized in the frog’s head. The frog has a set of transparent eyelids called nictating membranes that protect its eyes in the water. Their tongue is mostly attached at the front of the lower jaw; it flicks out to capture prey.

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