Homeostasis and Symmetry

Does this body system have symmetry?

• yes

• no

Symmetry about a central axis

• Chemoreceptors

• Bilateral symmetry

• Asymmetry

• Radial symmetry

Does this animal have symmetry?

• Yes

• No

Does this animal have symmetry?

• Yes

• No

T/F Worms have bilateral symmetry.

• True 
• False

Does this animal have symmetry?

• Yes

• No

If you divide something in half (have a left and right side), the

sides are “mirror images.” (Most animals have this)

• dichotomous

• bilateral symmetry

• diversity

• radial symmetry

Bilateral Symmetry can be defined as

• 1 line from any plane divides a shape into 2 equal parts

• 1 line divides a shape into distinct right and left halves that are mirror images

• shape that can be divided into mirror images using any of several lines

• a shape that cannot be divided into mirror images

When something can be divided into two identical halves when divided at any angle.

• refraction

• bilateral symmetry

• reflection

• radial symmetry

Which of the following describes homeostasis?

• keeps variables exactly at the set point

• organism's ability to maintain steady(stable) internal conditions

• acts to keep values outside of a desired range

• operates through positive feedback