Lab Practical Hurley

Identify the earthworm structure labeled as F.

• Seminal vesicle

• Crop

• Gizzard

• Clitellum

Identify the earthworm structure labeled as A.

• Clitellum

• Prostomium

• Setae

• Anus

Identify the earthworm structure labeled as G.

• Gizzard

• Crop

• Intestine

• Clitellum

Identify the function of earthworm seminal receptacles.

• Produce eggs for reproduction.

• Receive and store sperm from another earthworm during copulation.

• Filter waste from the earthworm's body.

• Assist in locomotion by contracting muscles.

Identify the highlighted earthworm structure.

• Aortic arch

• Nephridia

• Clitellum

• Setae

Identify the earthworm structure labeled as B.

• Pharynx

• Esophagus

• Crop

• Gizzard

Identify the function of the earthworm clitellum.

• Regulates regeneration and assists in earthworm reproduction by secreting a mucus cocoon for egg protection.

• Helps in the digestion of food by breaking down organic matter.

• Aids in locomotion by providing a muscular structure for movement.

• Serves as a sensory organ to detect environmental changes.

Identify the function of earthworm aortic arches.

• To absorb nutrients from the soil

• To pump blood into the dorsal and ventral blood vessels

• To aid in respiration by exchanging gases

• To provide structural support to the body

Identify the earthworm structure labeled as D.

• Seminal receptacle

• Clitellum

• Nephridia

• Crop

Identify the earthworm structures labeled as I and C.

• Head (C - prostomium, I - peristomium)

• Tail (C - clitellum, I - anus)

• Body Segment (C - segment 1, I - segment 2)

• Neck (C - collar, I - thorax)