Exam (elaborations)
BIO 172 UH Manoa Exam 2 Study Guide with Complete Solutions
- Course
- Institution
BIO 172 UH Manoa Exam 2 Study Guide with Complete Solutions
[Show more]
Content preview
©PREP4EXAMS@2024 [REAL EXAM DUMPS] Friday, July 19, 2024 6:13 AMBIO 172 UH Manoa Exam 2 Study Guide
with Complete Solutions
Animals - ✔️✔️Multicellular eukaryotes
Heterotrophs: Ingest their food
Lack Cell Walls
Body held together by structural proteins
Collagen - ✔️✔️Make up connective tissues (fibers)
Flexible and high tensile (stretching)
Skin - ✔️✔️Dense irregular arrangement of collagen
Ligament - ✔️✔️Collagen arranged in sheets
(Connects Bones)
Tendon - ✔️✔️Cable-like arrangement of collagen
(Connects muscle to bone)
Zygote - ✔️✔️Fertilized egg
(Sperm+Egg=Zygote)
Undergoes rapid cell division called cleavage
Germ Layers - ✔️✔️Give rise to tissues and organs of animal embryo
Blastula - ✔️✔️Cell that has undergone many cell cleavages
Hollow blastula undergoes gastrulation, forming gastrula (has layers of embryonic tissues)
Ectoderm - ✔️✔️Germ layer covering embryo surface
Endoderm - ✔️✔️Innermost germ layer and lines developing digestive tube (aka=Archenteron)
Diploblastic - ✔️✔️Animals that exhibit both ectoderm and endoderm in the embryo
(Corals, jellyfish)
Triploblastic - ✔️✔️Animals that have intervening Mesoderm layer (bilaterians)
Bilaterians - ✔️✔️All Multicellular animals other than sponges and cnidarians
1
, ©PREP4EXAMS@2024 [REAL EXAM DUMPS] Friday, July 19, 2024 6:13 AM
Exhibit bilateral symmetry and cephalization
Cephalization - ✔️✔️Organization of senses and locomotion toward head region
Larva - ✔️✔️Sexually immature and anatomically distinct from the adult, undergoes
metamorphosis
Juvenile - ✔️✔️Resembles an adult, but not sexually mature
Cambrian explosion - ✔️✔️535-525 million years ago, marks earliest fossil appearance of many
animal major groups
Hox Genes - ✔️✔️Control the development of body form (Hox Gene "__" can tell to form an arm)
Protosome - ✔️✔️Cell proliferation by spiral cleavage
Coelom forms within the middle tissue germ layer
Initial opening of gut becomes the mouth
Deuterostome - ✔️✔️Cell proliferation by radial cleavage
Coelom forms from outpocket of the middle tissue germ layer
Initial opening of gut becomes the anus
Coelom - ✔️✔️Body cavity surrounding the gut
Sessile - ✔️✔️Do not exhibit locomotion
(Sponges)
Collar Cells - ✔️✔️Flagella bearing cells that create water currents that move through the body of
the sponge
Spicules - ✔️✔️Tiny calcium/silica structures
Sponges (Phylum:Porifera) - ✔️✔️Hermaphrodites (release sperm into environment)
Jellyfish, Anemones, Corals
(Phylum: Cnidaria) - ✔️✔️Have radial symmetry
Possess two specialized cell layers (tissues) and nerve cells
Two Body Forms: Sessile polyp and free swimming medusa
Nematocysts - ✔️✔️Held under pressure (140 atmospheres) These are the microscopic venomous
spines on the tentacle
Lophotrochozoa - ✔️✔️Animals that share horse-shoe shaped feeding structure called a
lophophore and a Ciliated larva called trocophore
2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller OliviaWest. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81298 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now