Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
A carbohydrate that serves as an important support material in the cell walls of fungi and in the skeletons of animals.
4.
A complex molecule largely responsible for the rigidity of the cell walls of woody plants.
6.
(____ skeleton) A support structure that depends on the interaction between a fluid under pressure and an elastic membrane for stiffness.
8.
(____ skeleton) A skeleton that surrounds the soft tissues of the animal it supports.
10.
A carbohydrate produced by plants and some other organisms that makes up much of their cell walls.
12.
A collagen-rich connective structure that attaches bone to bone in vertebrate skeletons.
14.
A protein produced by the connective cells of animals that resists tension.
15.
(____ relationship) A relationship between body size and another functional or structural property of an organism.
Down:
1.
A flexible connection between the rigid elements that make up an animal skeleton.
3.
(____ skeleton) A skeleton that lies within the soft tissues of the animal it supports.
5.
(two words, no space) A connection between two molecules that generally increases resistance to compression or tension, and often increases stiffness.
7.
A support structure found in animals that consists of connective cells that secrete a matrix rich in the protein collagen.
9.
(two words, no space) A support layer that lies outside the plasma membrane of the cells of many prokaryotes, fungi, and plants.
11.
A collagen-rich connective structure that attaches muscle to bone in vertebrate skeletons.
13.
A support structure found in most vertebrate animals, formed by connective cells that secrete a mineral matrix rich in calcium. The core of a ____ serves as the site of red and white blood cell production.