Bio 2 Lab Test 3 Earthworm

Closed circulatory system

Earthworm circulatory system

Closed circulatory system

Blood always in vessels

Dorsal

Earthworm darker side

5

Earthworm number of aortic arches

Aortic arch

Part of heart

Cuticle

Earthworm slimy outer covering

Clitellum

Earthworm band used for reproduction

Setae

Earthworm hair-like structures used for movement

Genital setae

Earthworm organ found near clitellum used for reproduction

Castings

Earthworm poop

Sperm ducts

Earthworm opening near anterior of worm that help transport sperm

Dorsal blood vessel

Earthworm blood vessel that carries blood from the hearts to the body tissue

Is darker

Hemaphrodite

Organism with both reproductive organs

Earthworm is one

4

Number of earthworms per egg

Skin

How earthworms breathe

Seminal vesicle

Earthworm three pairs of structures that store sperm before it is released through the male genital pore

Mouth, pharynx, esophagus, crop, gizzard, intestine, anus

Earthworm digestive system order

Pharynx

Earthworm thick-walled organ of the digestive tract located just posterior to the oral cavity

Esophagus

Earthworm digestive system tube through which food moves from the pharynx to the crop

Crop

Earthworm organ that stores food

Gizzard

Earthworm organ that grinds food

Ventral nerve cord

Earthworm nervous system cord side

Septa

Earthworm tissue that separates segments

Seminal receptacle

Earthworm two pairs of structures that store sperm received from another worm during copulation

Intestine

Earthworm portion of digestive tract where nutrient absorption occurs, extending from the gizzard to the anus

Lumbricus terrestris

Earthworm scientific name

Annelida clitellata

Earthworm phylum class

Invertebrate

Earthworm invertebrate or vertebrate?

Ventral

Dissection side of vertebrate

Dorsal

Dissection side of invertebrate

Typhlosole

Earthworm enfolding of intestine to increase surface area