Invertebrates 1
This sub groups contain squids and octopuses
Origin:
They are closed circulatory system, with very developed sense organs, and have carnivores with beak-liked jaws surrounded by tentacles of their modified foot.
Cephalopoda
What is the phylum that does not have true tissue?
Porifera
What is the difference between Millipedes and centipedes?
Centi: one pairs of legs per segment, fast-moving, predatory & venomous
Milli: two pairs of legs per segment, slower-moving, eat decaying matter; hardened cuticle
What is a characteristic of lancelets?
Bladelike shape
Marine suspension feeders
What is ectothermy?
Bonus:
What is one advantage of this?
Phylum Annelida have complete digestive tract and a closed circulatory system.
What are species that are in this group?
Leeches, earthworms, Christmas tree worm.
Bonus:
What is special about earthworms?
What are the tentacles in phylum Cnidaria that does the stinging capsules that inject toxin to prey?
nematocysts
What is the blastopore of protostome?
it becomes the mouth
Cyclostoma are?
Jawless fish
Cartilaginous skeleton
No scales or paired fins
Bonus:
What are examples of this species?
What two reptile species are restricted to only warm regions?
This phylum house many insects, especially ones that stay in your home to feed. They have 6 pairs of feeding appendages, having a pedipalps, and 4 pairs of walking legs.
What is the subgroup this species belong to?
Chelicerate
Flames cells excrete waste, some produce asexually, some produce sexually, and lack specialized organs for gas exchange. Rely on diffusion.
What is this species?
Planarians
What is the cleavage of deuterostome?
Radial and indeterminate
What are 5 the characteristics of Amniotes?
Amniotic egg
Skin rich in keratin
Rib cage
Kidneys
Internal infertilzation
What are 3 characteristics of birds?
Keratinized feathers for insulation, courtship, flight, and moisture retention
Lightweight: thin bones, no urinary bladder, no teeth, females have one ovary
Lungs are connected to air sacs that “store” O2 (cellular respiration)
4-chambered heart
Endothermic (control body temp. by behavioral adaptations)
Well-developed sense organs and nervous system (ex: acute vision)
Internal fertilization
Maggots, grubs, and caterpillar have an entirely different look. What make this happen?
29. Which of the following combinations of phylum and description is incorrect?
A) Echinodermata - bilateral symmetry as a larva, coelom present
B) Nematoda - roundworms, pseudocoelomate
C) Cnidaria - radial symmetry, polyp and medusa body forms
D) Platyhelminthes - flatworms, gastrovascular cavity, acoelomate
E) Porifera - gastrovascular cavity, coelom present
E) Porifera - gastrovascular cavity, coelom present
What is cephalization?
It is a concentration of sensory organs at the front end of an animal
- It usually associated with bilateral symmetry.
Name all 3 characteristics of Chondrichthyans
No operculum
No swim bladder
Amp of Lorenzini
Cartilaginous fishes
Uncovered gills
What is the animals type that produce egg yolk, called vitellogensis?
oviparous
A new discovered species found in a lab research. The researches wants to find the specific group they belong and found that they do not have arms but use locomotion. What are they?
Sea urchins
Bonus:
What is the subgroup they belong to?
What is the phylum where you have species that help nutrient cycling, decompose, infect plants/animals, and all have a complete digestive tract.
This means they can be parasitic species.
Phylum Nematoda
Bonus:
What are some of the species in this phylum?
Pseudocoelomate: body cavity partially lined with mesoderm
Coelomates: body cavity completely lined with mesoderm.
Name 5 characteristics of Usteichthyons
Operculum
Swim bladder
Bony Fishes
No Amp of Lorenzini
Lateral line system
Most are oviparous
- Contain Actinoptergyii and Sarcopterygii
Describe the differences in shark eggs: Oviparous, Ovovivparous, Viviparous
Oviparous
Eggs + hatch outside
Ovoviviparous
Eggs -> Oviduct
Young born after hatching within uterus
Viviparous
Develop in Uterus, yolk sac placenta, live birth. Absorb nutrients