E

MC	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based on structure.
*ILO:*

In the past scientists used to classify living things into either the plant or animal kingdoms. Today it is customary to use a classification system that uses five kingdoms, and many scientists favor six. Which answer below best explains why?

a. Modern day scientists are better at thinking and analyzing than scientists from the past.

b. Modern day scientists are better at noticing details than scientists from the past.

c. Modern day scientists work harder today than they did in the past.

d. Modern day scientists have better technology to analyze and classify organisms than in the past.

Correct Answer: d

MC	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based on structure.
*ILO:*

Which answer below best describes the future of our modern classification system for biological organisms?

a. It will probably stay the same because scientists have learned all there is to know about classifying organisms.

b. It will probably stay the same because scientists don’t like to change things.

c. It will probably change because scientists like to change things from time to time.

d. It will probably change because new technology will provide better information on classifying organisms.

Correct Answer: d

MC	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based on structure.
*ILO:*

Many people have the misconception that mushrooms belong to the Plant kingdom. To disprove this misconception you conduct an experiment by growing plants and mushrooms under different amounts of light. You obtain the following data from your experiment.

Organism	Amount of water per day	Hours of light per day	Growth/description after 2 weeks
Mushroom #1	100 ml	8	4 inches – healthy
Mushroom #2	100 ml	0	4 inches – healthy
Plant #1	100 ml	8	4 inches – healthy
Plant #2	100 ml	0	0 inches - dead

Based upon these data, which of the following is the best conclusion?

a. Mushrooms belong to the Plant kingdom because they can grow in light.

b. Mushrooms belong to the Plant kingdom because they need water.

c. Mushrooms do NOT belong to the Plant kingdom because they can grow in the dark.

d. Mushrooms do NOT belong to the Plant kingdom because they need water.

Correct Answer: c

MC	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based upon structure.
*ILO:*

A major difference between animals and plants is that

a. plants cannot move on their own

b. plants can make their own food

c. plants don't need air

d. plants do not respond to stimuli

Correct Answer: b

MC	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based upon structure.
*ILO:*

Many sponges look somewhat like plants. Which of the following is a major reason why they are classified as animals?

a. they live in water

b. they have pores

c. they do not move

d. they do not make food

Correct Answer: d

MC	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based on structure.
*ILO:*

In which kingdom would a mulitcellular green food-producer be placed?

a. animalia

b. fungi

c. monera

d. plantae

e. protesta

Correct Answer: d

MC	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based on structure.
*ILO:*

If you observe that a cell has a cell wall, which could you safely conclude?

a. the cell definitely came from an animal

b. the cell definitely came from a plant

c. the cell must also have chloroplasts

d. the cell could have come from a fungus

Correct Answer: d

I	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based on structure.
*ILO:*

Use the key to classify the plants in the diagrams.

Conifer Dichotomous Key

1a. Leaves are scale-like, growing along the branch.

Cones are berry-like. JUNIPER

b. Leaves are needle-like, growing out from the branch Go to 2

2a. Needles come out from the branch singly Go to 3

b. Needles come off the branch in bundles of 2 or more, with the bases wrapped

in a papery substance; cones are woody PINE

3a. Needles are sharp on the end and square in cross-section;

cones are papery SPRUCE

b. Needles are flat in cross-section; cones with dense, papery scales

that often flake apart FIR

Which type of conifer is each diagram?

a. Juniper

b. Pine

c. Spruce

d. Fir

Correct Answers:

1. d

2. b

3. a

I	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based on structure.
*ILO:*

Use the following classification key to identify the organisms below.

1a. Organism is symmetrical Go to 2

1b. Organism is not symmetrical Phylum Porifera

2a. Organism is bilaterally symmetrical Go to 3

2b. Organism is radially symmetrical Go to 5

3a. Organism has a spinal cord and vertebrae Phylum Chordata

3b. Organism has NO spinal cord or vertebrae Go to 4

4a. Organism has a hard exoskeleton Phylum Arthropoda

4b. Organism has no hard exoskeleton Phylum Annelida

5a. Organism has five rays or arms Phylum Echinodermata

5b. Organism is transparent with many tentacles Phylum Coelenterata

I II III

1. Based on the information above, what phylum would organism II belong to?

a. Porifera

b. Chordata

c. Arthropoda

d. Coelenterata

e. Echinodermata

2. Based on the information above, what phylum would organism I belong to?

a. Porifera

b. Chordata

c. Arthropoda

d. Coelenterata

e. Echinodermata

3. Based on the information above, what phylum would organism III belong to?

a. Porifera

b. Chordata

c. Arthropoda

d. Coelenterata

e. Echinodermata

Correct Answers:

1. e

2. d

3. b

I	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based on structure.
*ILO:*

Alternate leaves grow singly along the branch with space between each leaf.

A compound leaf has many leaflets.

Lobed

Toothed

Opposite leaves grow directly across from one another, in pairs.

A simple leaf is made up of only one leaf blade.

Use the leaf classification key above to identify and label each illustration that follows.

Which trees do these leaves come from?

1. _______________

2. _______________

3. _______________

4. _______________

5. _______________

6. _______________

Correct Answers:

1. American Birch

2. White Pine

3. White Cedar

4. Green Ash

5. Red Spruce

6. Gray Birch

E	*7^th Grade Integrated Science*	*Standard:* 05
*Objective:* 03. Classify organisms using an orderly pattern based upon structure.
*ILO:*

Describe three classification systems used in the early history of science. (Examples can be used from Aristotle, Ray and Linneaus) Compare them with the systems that we use today. Explain how early methods helped develop the classification system that we use today. Be sure to include previous problems that scientists faced in doing classification.

Scoring Rubric:

4 - Students describe and compare three classification systems. Difficulties faced by previous systems, how earlier methods developed and the solving of those problems in our current systems should be included. Spelling, grammar and punctuation should be correct.

3 - Students describe at least two classification systems and compare them with the system we use today. Difficulties of classification should also be included.

2 - Students compare and describe one previous classification system to the one used today. Difficulties of classification should be included.

1 - Student can describe either the current or a previous classification system. No comparisons are made.