People donate bone marrow so that those in need can produce: (1 point)

O fat and muscles
bones and fat
blood and fat
bones

and blood

People donate bone marrow so that those in need can produce: (1 point)

fat and muscles
bones and fat
blood and fat
bones

and blood

What is one limitation of a using a 2D computer-generated image of the digestive system instead of using the actual thing?

(1 point)

The 2D image is too small and the organs are, therefore, difficult to see.
The 2D image does not show all of the organs since some of them overlap.
The 2D image is less accurate in showing how the organs look, such as their texture.
The 2D image is messy and does not show how the organs are connected to each other.

3 of 5

Which statement correctly describes a model? (1 point)
models perfectly mimic the system
• models focus on specific details
models are never updated
models show all system details

Compare types of models. Which model best illustrates the formation of blood cells? (1 point)

computer-generated model
plastic bone
photograph of a bone
dissected pig

A complete model of the skeleton that could be useful for all practical applications would be: (1 point)

O a dissected human
• a 2D computer generated model
O a 3D computer generated model
O
such a model is impossible

The 2D image does not show all of the organs since some of them overlap.

Models focus on specific details.

Plastic bone