Protection, Support, and Movement
Which phylum has internal spicules that function as support structures?
a. Arthropoda
b. Porifera
c. Nematoda
d. Mollusca
b. Porifera
What is the arrangement of the nervous system of Cnidarians?
Nerve Nets
Which phylum filter feeds using pharyngeal slits?
a. Urochordates
b. Craniate
c. Cephalochordates
d. Echinodermata
c. Cephalochordates
Poriferans have circulatory system that allows nutrients to be circulated all around their body.
FALSE
Which of the following exhibits internal fertilization?
a. Clams
b. Polychaetes
c. Starfish
d. Ascaris
d. Ascaris
What is the specialized protective layer of parasitic Platyhelminthes?
Tegument
What hormones in Arthropoda is responsible for metamorphosis?
Juvenile Hormones
What cells remove wastes and maintain osmotic balance in Platyhelminthes?
Flame Cells / Protonephridia
What allows some members of arachnids to breath in water and in land?
Book Gills / Book Lungs
Among the three groups of chordates, which exhibits budding?
Urochordata
Match the structure to the correct phylum:
A. Hydrostatic skeleton in segmented coeloms
B. Chitinous exoskeleton
C. Endoskeleton of calcareous plates
Arthropoda
Annelida
Echinodermata
1. B
2. A
3. C
What is the structure in platyhelminthes that serves as a simple “brain”?
Cerebral ganglia
Which does not belong to the group in terms of digestive system?
a. Annelida
b. Cnidarians
c. Mollusca
d. Arthropoda
b. Cnidarians
Compare the circulatory system of Gastropods and Cephalopods.
Gastropods - Open
Cephalopods - Closed
In cnidarians, which paired body forms maximize reproductive success?
Polyp and Medusa
A squid suddenly darkens its body to blend into a rocky environment. Which integumentary cells activated to cause this immediate color shift?
Chromatophores
Enumerate 1 hormone produced by the testes and ovaries?
Testes - Testosterone
Ovaries - Estrogen / Progesterone
What breaks down undigested carbohydrates in the human large intestine?
Bacteria
What structure of the lymphatic system of humans filters pathogens from the lymph fluids?
Lymph Nodes
What class of vertebrates undergo: 1 each
external fertilization - _________
internal fertilization - _________
External (fish, many amphibians)
Internal fertilization (reptiles, birds, mammals).
Compare the muscular systems of nematodes and annelids in terms of structure and movement.
Nematodes - Longitudinal - Trashing
Annelids - Longitudinal and Circular - Peristalsis
Compare the speed of reaction of the nervous and endocrine system.
Nervous = fast, short-term
Endocrine = slow, long-lasting
What is the structures that act as excretory organ for the following:
insects - _________
crustaceans - _________
arachnids - _________
Insects: Malpighian tubules
Crustaceans: Green glands or antennal glands
Arachnids: Coxal glands
What are the 3 types of circulation in humans?
Systemic
Pulmonary
Coronary
During menstruation in females, what part of their reproductive system is being sloughed off?
Uterus
Lining of the Uterine Wall