Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
AP Courses
/
AP Biology
/
Information Exchange and Behavior
Grade Level
AP Biology
APB.421 Information Exchange and Behavior
0%
Skill Level
🔴 Hard
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
A parent bird produces a short call near the nest when a predator is nearby. Which observation best demonstrates information exchange changing receiver behavior?
A
Nestlings gain mass when parents deliver more food per hour.
B
Nestlings stop begging and crouch when the parental call is played through a speaker.
C
The speaker battery voltage decreases after repeated use.
D
The nest cup retains heat during a cool morning.
Submit Answer
