1
What is the correct pathway for a reflex action when touching a sharp thorn?
2
Why does the jerboa jump in a zigzag path rather than a straight line?
3
Sound travels faster in water than in air because water is:
4
Which object produces diffuse (scattered) reflection?
5
How do eyes of nocturnal animals differ from diurnal animals?
6
The light emitted by fireflies is special because it is:
7
What do sensory receptors in the skin detect?
8
A scout bee performs a round dance when nectar is located:
9
If the optic nerve connecting the eye to the brain is severed, what happens?
10
Why is your shadow shortest at noon?
11
Blinking involuntarily when dust blows near your eyes is an example of a:
12
Which of the following is true about how we perceive an apple as red?
13
Ants communicate trail routes and alarm signals through chemical scents called:
14
Morse code can be transmitted through which sensory channels?
15
When you hold an ice cube with eyes closed, you know it is cold because of:
16
The reflective mirror-like layer behind the retina in cats' eyes is called the:
17
Which of the following is a primary source of light (produces its own light)?
18
The Moon shines in the night sky because it:
19
Why is solving a math puzzle NOT considered a reflex action?
20
The overarching theme of Concept 2 (How Senses Work) is: