biology 1625 final

The organism pictured is found in the blood and causes

African sleeping sickness

Which organelle is used to get rid of excess water and is found in fresh water protozoans?

Contractile vacuole

Which of the listed organisms is found in the group Alveolata and the Subgroup Apicomplexa

Plasmodium

The organism pictured belongs to which GROUP (not sub-group)?

Alveolata

Which one of the following is NOT a CLASS under Phylum Cnidaria?

Medusozoa

The organism pictured is a freshwater sponge.  Which CLASS does it belong to?

Demospongiae

The following picture is a microscopic view of

Spicules

The stinging cells of Cnidarians are called?

Cnidocytes

Which one of the following is an organism under Class Anthozoa?

anemones

The organism pictured belongs to which CLASS?

Hydrozoa

Which of the following terms means "without a body cavity"?

Acoelomate

Which CLASS does the following organism belong to?

 

Turbellaria

Which CLASS includes the Chinese liver fluke?

Trematoma

Which PHYLUM does pinworm belong to?

Nematoda

False

Tapeworms do not have a body cavity meaning they are a Pseudocoelomate.

This organism has many segments and is found under Class Cestoda.  What is the common name?

Tapeworm

Which of the flukes has separate sexes?

Blood Fluke

The head of the tapeworm is called _____ and the body is called ____

Scolex, Proglottid

The arrow indicates which structure in the fluke?

Bi-branched intestine

Which PHYLUM does the following organism belong to?

Rotifera

Two Valves

Bivalvia

Stomach foot

Gastropoda

Head Foot

Cephalopoda

Many plates

Polyplacophora

many hairs

Polychaeta

Leech

Clitella

cuttlefish

cephalopoda

nudibranch

gastropoda

sea mouse

polychaeta

chiton

polyplacophora

What are the three main body regions of organisms under Mollusca?

Visceral mass, foot, mantle

The organism pictured belongs to which PHYLUM?

Annelida

Which CLASS has organisms that use a radula to obtain food?

Gastropoda

Which structure is indicated by the arrow?

Crop

Which structure is indicated by the arrow?

Pharynx

What percentage of all the known animal species are arthropods?

85%

Horseshoe crabs are most closely related to

Spiders

Class Merostomata and Arachnida have three main body regions.

False

What are the jaws of spiders and scorpions properly called

Chelicerae

Which one of the following is NOT a function of the water vascular system in echinoderms?

Digestion of food

What are the claws of the crayfish properly called?

Cheliped

Lancelets belong to which SUBPHYLUM?

 Cephalochordata

Which class of vertebrate is considered the evolutionary link between water and land vertebrates.

Amphibia

Under the class of mammalia there are three groups based on birth type.  The monotremes have ______________.  The marsupials have _______________. The placentals have _______________.

eggs, pouches, placenta

which structure is indicated by the arrow

Stomach

Which structure is indicated by the arrow

Liver

The muscles and skeletal elements are derived from which germ layer?

Mesoderm

The formation of the 3 germ layers (ectoderm, mesoderm, endoderm) occurs during which stage in sea urchin, frog and chicken development.

Gastrula

The picture below is a sea urchin at the beginning of the gastrula phase.  Identify the structure indicated by the arrow.

Blastopore

The picture below is a frog during the gastrula phase.  Identify the structure indicated by the arrow.

Yolk plug

Formation of the neural tube during chicken development occurs during which stage?

Neurulation

In frog eggs the yolk is evenly distributed.

False

After the cleavage stage in the chicken, cells from the blastodisc move into the subgerminal space forming the blastocoel.  The top layer of cells are call the _____________________ and the bottom layer are called the _____________________.

Epiblast, Hypoblast

Which of the following animals has a blastocoel that fills in the middle of the developing fetus and creates a single layer of cells on the outside.

Sea Urchin

Most eggs have two sides, a top and bottom.  These are called the ______________ and ______________ poles

Animal, Vegetal