Lab Exam 1

Question 1

What is this organism? (tear dropped shaped)

Answer 1

Giardia (Protist, diplomonad, parasitic)

Question 2

What is Trypanosoma and what can it cause?

Answer 2

Parasites that infect the blood stream, but not blood cells directly. They can cause sleeping sickness.

Question 3

What kind of protist is Malaria and describes its life cycle.

Answer 3

Plasmodium (Apicomplexan) Sporozoite > Merozoite > Gametocyte , Parasitic, infects blood cell

Question 4

What are Paramecium (Ciliates)

Answer 4

Covered in cilia, have two nuclei

Question 5

How do Amoeba (tubulinids) move

Answer 5

Move through Pseudopodia

Question 6

Porifera (sponges + anatomy)

Answer 6

Sedentary, no body symmetry, lack tissues and organs,

Question 7

What are the three body plans for Porifera

Answer 7

Ascon (simple), Sycon (intermediate), Leucon (complex)

Question 8

Types of Sponge cells

Answer 8

Choanocytes - flagellated cells
Porocytes - form incurrent pores
Amoebocytes - scavenger cells, digestion, feed other cells
Pinacocytes - forms the outer layer

Question 9

Dorsal, Ventral, Anterior, Posterior

Answer 9

Top, bottom, front, back

Question 10

Cnidaria

Answer 10

Diploblastic. Scyophizoa (jellyfish), Cubozoa (Box jellyfish), Anthozoa (Sea Anemones corals), Hydrazoa, Obelia

Question 11

Hydrazoa Characteristics

Answer 11

sexual/asexual, bud (asexual reproduction), ovary/testis on the side, tentacles for feeding, cnidocytes for stringing on tentacles

Question 12

Obelia Characteristics

Answer 12

hydranth (feeding polyp), tentacles for feeding, gonangium (reproductive polyp) + medusa buds (asexual)

Question 13

Platyhelminthes

Answer 13

Free-living, Trematode (Flukes), Cestoda (Tapeworms), They have a pharynx, pharyngeal cavity, eyespot, and flame cells.

Question 14

Mollusca

Answer 14

Bivalves (clams), Chiton, Cephalopod (squids and octopus), Gastropod (snails)

Question 15

Bivalves

Answer 15

Anterior (left) and posterior (right) adductor muscles, mantle, gills, incurrent (ventral) and excurrent (dorsal) siphons, foot, and visceral mass

Question 16

Annelida (segmented)

Answer 16

Errantia (marine worms), Sedentaria (earthworms and leeches),

Question 17

Sedentaria (Earthworms) Digestive tract

Answer 17

mouth, pharynx, esophagus, crop, gizzard, intestine, anal

Question 18

Nematoda (roundworms, parasitic)

Answer 18

Ascaris (female has a longer reproductive tube and straight tail), Trichinella Spiralis (Can cause Trichinellosis from undercooked meat), C. elegans (A model organism)

Question 19

Arthropoda

Answer 19

Chelicerata (Horseshoe Crabs, Arachnids), Myriapoda (centipedes and millipedes), Pan crustacea (Crustaceans and Insects)

Question 20

Crustaceans Characteristics

Answer 20

Two antennae, mandibles for eating, three body regions (head, thorax, abdomen)

Question 21

Insect Characteristics

Answer 21

6 legs, 3 body regions (head, thorax, abdomen), two antennae, compound eyes,

Question 22

Echinodermata

Answer 22

Ophiuroidea (brittle stars)
Echinoidea (sea urchins, sand dollars)
Asteroidea (sea stars + anatomy)
Holothuroidea (sea cucumbers)

Question 23

Chordata

Answer 23

Cephalochordata (lancelets, fish), Urochordata (Tunicates, Sea Squirts),

Question 24

Chordata (vertebrates)

Answer 24

Myxini(Hagfish), Petromyzontida (lampreys), Chondrictheyes (cartilaginous fishes), Actinopterygii (ray finned fishes), Actinistia and Dipnoi (lobe-finned fishes), Amphibia (salamanders, frogs, caecilians), Reptilia (lizards, snakes, turtles, alligators, birds), Mammalia (mammals).