Zoology exam 4 Study guide (2)
mention 3 characteristics of the Appendages of the subphylum crustacea.
- They have one for swimming
- They have one for walking
- They have Biramous Appendages
The antennal gland is also known as what?
The green gland
Where is the Antennal gland located?
At the base of the antenna
The Antennal gland has no _________________.
Describe the Antennal gland?
- It is also known as a green gland
- It is located at the base of the antenna
- It has no sensation
What is the primary role of the Antennal gland?
Where is fluid stored in crustaceans?
In the bladder
In Crustaceans, How is fluid excreted?
Via the Nephridiophore
In Chelicerates, How is fluid excreted?
A gizzard in decapod crustaceans, as lobsters, crabs, and shrimps, having an arrangement of teeth and small bones for grinding food and bristles for filtering small particles.
What type of Stomach do Crustaceans have?
A large stomach
In Crustaceans, What is the gastrolith used for?
In Crustaceans, Where does the gastric mill pass food into?
The small intestine
During molting, what do crustaceans secrete?
During molting, What do crustaceans dissolve?
During molting, what happens to the blood volume of Crustaceans?
Describe the molting process of a crustacean.
- They secrete new cuticle
- Enzymes dissolve old cuticles
- Blood Volume increases
Describe the Life Cycle of a Crustacean.
5. Post Larval Stage
What are some triggers of molting in crustaceans?
- Day length
What produces the inhibiting hormone of molting in crustaceans?
What produces the molting hormone in crustaceans?
What happens to the inhibiting hormone during the molting process of Crustaceans?
Its levels drop.
What happens to the molting hormone during the molting process of Crustaceans?
More are produced.
In Hexapods, what is used for Absorption during digestion?
In Hexapods, what is used for grinding during digestion?
How many pairs of wings does the Subphylum Hexapoda have?
How many Tagmata does the Subphylum Hexapoda have?
What does the Tagmata of the subphylum Haxapoda consist of?
How many legs do Hexapods have?
Which subphyla are uniramous?
Myriapoda and Hexapoda
Describe the Appendages of the subphylum Hexapoda.
- They have 6 legs
- They are Uniramous
- They have 3 pairs of legs
- They have 2 pairs of wings
- They have 3 tagmata
Name the two classes of the Subphylum Hexapoda.
How many species are within the class insecta?
Describe the mouthparts of the class insecta.
It is Ectognathous (mouth outside of head)
In Hexapods, what is used for storage?
In Hexapods, what is used for grinding?
In Hexapods, what is used for Absorption?
Describe the Digestive system of the class Hexapoda.
Which subphyla use Malpighian Tubules for Osmoregulation?
Chelicerata and Hexapoda
In Hexapods, what is used for storage of food?
Which Subphyla of the Phylum Anthropoda has an Open Circulatory system?
All of them
How do Hexapods under go circulation?
The heart pumps hemolymph out into the body cavity, shaded in pink, where it can directly bathe the tissues and provide nutrients and oxygen to them without the use of blood vessel.
- It has an open circulatory system.
Which Subphyla uses Body Surface or Tracheae to respire?
Which Subphyla uses Book lungs or Tracheae to respire?
How do Hexapods respire?
Via a Tracheal System (Oxygen directly to each cell).
What does a tracheal system of Hexapod consist of?
Trachioles wrapping around every single cell
openings on the surface of Hexapods, which usually leads to respiratory systems.
What is the role of Taenidia in the Tracheal system in Hexapods?
They provide support
What Kind of development can Hexapods undergo?
- Direct development
- incomplete Metamorphosis
- Complete Metamorphosis
Organisms with Direct development are know as what?
Organisms with Incomplete metamorphosis are known as...
Organisms that undergo Complete Metamorphosis are know as....
Ecdysone is known as what?
The Molting Hormone
The Molting hormone of Hexapods is know as..
Juvenile Hormones sustain what?
Larval Molting is sustained by which hormones?
The stage between molts in Hexapods is called..
In hexapods, 'Instar' is known as.....
The stage between molts
The delay in development in response to regularly and recurring periods of adverse environmental conditions.