AP Biology- Unit 8.1

Reorder

Place the levels of organization in order from least inclusive to most inclusive.

• Individual

• Population

• Community

• Ecosystem

• Biosphere

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Open Ended

Describe how physical principles help us track the movement of matter and energy in ecological systems.

Multiple Choice

Scientists observed that a population of bacteria growing in a flask of liquid medium do not distribute evenly throughout the medium if there is a magnet on one side of the flask. Instead, the bacteria tend to cluster close to the magnet. Which best describes the behavior exhibited by the bacteria?

• The bacteria are responding to their biological clocks.

• The bacteria are communicating to coordinate their movement.

• The bacteria are exhibiting taxis.

• The bacteria are exhibiting kinesis.

Drag and Drop

​ ​ Predict how the plant will respond to the position of the sun in this photo. ​

Placeholder

Drag these tiles and drop them in the correct blank above

Move towards the sun

Moves away from the sun

Remains in the same position

Drag and Drop

​ ​ Predict how the plant will respond to the position of the sun in this photo. ​ ​

Placeholder

Drag these tiles and drop them in the correct blank above

Remain in the same position

Moves away from the sun

Moves toward the sun

Match

Match the following

• Long day plants

• Short day plants

• Day neutral plants

Flower in the summer when days are long

Flower in the winter when days are short

not affected by day length

• Flower in the summer when days are long

• Flower in the winter when days are short

• not affected by day length

Multiple Choice

Which statement about responses to environmental stimuli is true?

• Short-day plants flower when there is a long photoperiod.

• Plants experiencing phototropism move toward sunlight.

• Navigating birds lack an internal compass, so they rely on stars.

• A circadian clock operates during daylight hours.

Match

Match the types of communication to the correct example of each.

• Visual Communication

• Auditory Communication

• Chemical Communication

• Tactile Communication

• Electrical Communication

Male peacock has colorful feathers

A cat hissing at a dog

Flower attracts a hummingbird with scent

Bear cubs wrestling

A fish emitting an electric charge

• Male peacock has colorful feathers

• A cat hissing at a dog

• Flower attracts a hummingbird with scent

• Bear cubs wrestling

• A fish emitting an electric charge

Multiple Choice

Which statement about communication is false?

• Brightly colored flowers communicate a source of nectar to pollinators.

• Rattlesnakes use auditory communication when threatened.

• Animals mark their territories using chemical communication.

• Plants are unable to use chemical communication.

Multiple Choice

Which statement is true about innate or learned behaviors?

• Innate behaviors are performed better over time.

• Imprinting on a parent is an example of an innate behavior.

• Imitation is an example of a learned behavior.

• Courtship displays in birds are commonly learned behaviors.

Multiple Choice

Which statement about social behavior is false?

• The fitness costs of social living outweigh the fitness benefits.

• Benefits include the ability of predators to capture and subdue large prey.

• Costs include having to share food with other members of the same species.

• Some species are highly social, living in groups that number in the thousands.