1. forms membranes .
2. allows for movement of limbs and for organ movement within the body
3. uses electrochemical signals to carry out its function .
4. supports and reinforces body organs
5. cells of this tissue may absorb and/or secrete substances .
6. basis of the major controlling system of the body
7. its cells shorten to exert force
8. forms endocrine and exocrine glands .
9. surrounds and cushions body organs
10. characterized by having large amounts of extracellular material .
11. widely distributed, found in bones, cartilage, and fat deposits
12. forms the brain and spinal

1. Forms membranes epithelium.

2. Allows for movement of limbs and for organ movement within the body muscle tissue.

3. Uses electrochemical signals to carry out its function nervous tissue

4. Supports and reinforces body organs connective tissue.

5. Cells of this tissue may absorb and/or secrete substances epithelium.

6. Basis of the major controlling system of the body nervous tissue

7. Its cells shorten to exert force muscle tissue.

8. Forms endocrine and exocrine glands epithelium.

9. Surrounds and cushions body organs connective tissue.

10. Characterized by having large amounts of extracellular material connective tissue.

11. Widely distributed, found in bones, cartilage, and fat deposits connective tissue.

12. Forms the brain and spinal cord nervous tissue.

Explanation:

Cells sharing a similar origin, group together in the body to form tissues; these typically share physical features and I arranged in regular patterns cells within the human body can generally be placed into four groups:

epithelial which refers to sheets of cells covering exterior surfaces and internal organs;connective tissue which functions to bind cells and organs together while protecting, supporting and integrating different regions.muscle tissue which responds to simulation, allowing for movement and locomotion; nervous tissue which responds to electrical impulses, allowing for communication between different regions of the body.

Sea urchins have a unique relationship of oxygen and carbon-di-oxide.

Explanation:

Sea Urchins spread oxygen in a unique way. They take in oxygen by staying inside water. Oxygen enters the body through their gills and tubed feet. CO2, which is waste is released through the anus. They get oxygen only through diffusion, i.e. diffusion of oxygen into the organism. Oxygen diffuses in body through the canals and carbon dioxide diffuses back into the canals. Urchins also have the capability to cope up with rising CO2 levels in the sea.