Bundle 8

Some characteristics scientists use to classify organisms are shown below.
I.  Heterotrophic
II.  Multi-cellular
III. Prokaryote
IV. Asexual reproduction
Which of these characteristics could be used to classify organisms into the Animal Kingdom?

• Only I 
•  I and III
•  I and II
• I, III, and IV

In which human body system are hormones produced to regulate body activities?

• respiratory
• endocrine
• nervous
• digestive

Which of the following is an example of a chemical change in the digestive system?

• Enzymes breaking down carbohydrates in the mouth
• Water absorbed by the large intestine
• Teeth grinding food into smaller pieces in the mouth
• Muscle contraction moving food through the digestive system

Given the following organelles:  
 I.  Mitochondria
II.  Nucleus
III. Cell Wall
IV. Cytoplasm
The presence of which of these organelles could be used to determine if a cell is an animal or plant cell?

• Only II
• Only III
• III and IV
• I, II, IV

Which number identifies the organelle that functions to process sugar into usable energy for the cell?

• 1
• 2
• 3
• 4

The hydra is a very small, simple animal that lives in water.  Hydras reproduce asexually by budding, a process in which a bud breaks off an adult hydra and floats away.
Which of the following best describes a hydra bud?

• A hydra bud contains genetic material from its two parents.
• A hydra bud is genetically identical to the parent hydra.
• A hydra bud has different mutations than the parent hydra.
• A hydra bud has half as much genetic material as the parent hydra.

While on a walk, a student saw a tree they had not seen before.  The student used a dichotomous key to help them identify the type of tree.  A branch of the tree and the dichotomous key are shown below.
Which type of tree did the student see?

• tamarack
• spruce
• pine
• fir

When people run long distances, their muscles require increased amounts of oxygen.  Which system is responsible for carrying the oxygen to the muscles?

• Nervous
• Respiratory
• Digestive
• Circulatory

A defective cell loses its ability to control the passage of water, food, and waste into and out of the cell. In which structure of the cell is this defect located?

• the chloroplasts
• the cell membrane
• the vacuoles
• the nucleus

Muscles in the stomach grind food into smaller pieces.  What type of change occurs in this part of the digestive process?

• physical
• chemical
• thermal
• energy