Exam (elaborations)
BIO 182 Exam 4 NAU – Questions with Accurate Solutions
BIO 182 Exam 4 NAU – Questions with Accurate Solutions
[Show more]
Content preview
BIO 182 Exam 4 NAU – Questionswith Accurate Solutions
Be familiar with the common characteristics of animals. - -- Multicellular
heterotrophs
- cells lack cell walls
-most have nerves, muscles, and capacity to move at some point in the life
cycle
- able to reproduce sexually
- specialized sensory structures and nervous system
- cells exist in extensive extracellular matrix
- unique cell junctions
-What type of life cycle do all animals show? - -gametic
-What is the most likely ancestor of animals? - -choanoflagellates
-What are the 3 major features that were traditionally used to classify
animals? Know the different variations on these 3 major features. - -1.
Tissues
- metazoa
- parazoa
- porifera (sponges)
- eumetazoa
2. Body Symmetry
- radial symmetry
- bilateral symmetry
3. Specific features of embryonic development
- protosome
- deutrosome
-Be able to draw/identify the phylogenetic tree based off those three major
features. - -See chapter 26 phylogeny tree
-What are the features of protostome and deuterostome development? - -
Protostome:
- spiral cleavage
- cleavage is determinate
- blastopore becomes mouth
Deutrostome:
- radial cleavage
- cleavage in indeterminate
- blastopore becomes anus
, -What is the focused gene for molecular analysis used in animal diversity? -
-Compare similarities between DNA and ribosomal RNA of animals
Sometimes focus on small subunit ribosomal RNA
-What are the 2 new invertebrate clades that resulted from molecular
analysis of the rRNA region of the genome? - -Ecdysozoa:
- named for ecdysis (molting)
- nematodes, arthropods, and a few other minor phyla
Lophotrochozoa:
- named for the lophophore (feeding tentacles) and trochophore larva
- mollusks, annelids, and several other phyla
-For this chapter, you should know each of the phylum names (13 total
phyla) that are the end points of the phylogenetic tree of invertebrates. You
should also be able to be able to draw the tree and know the major traits
that divide the clades on the tree. - -1. Phylum Porifera
2. Phylum Cnidaria
3. Phylum Ctenphora
4. Phylum Platyhelminthes
5. Phylum Rotifera
6. Phylum Bryozoa
7. Phylum Brachiopoda
8. Phylum Mollusca
9. Phylum Annelida
10. Phylum Nematoda
11. Phylum Arthropoda
12. Phylum Echinodermata
13. Phylum Chordata
-You should also be able to identify important features of each of the phyla.
(type of gut, type of tissue, presence or absence of a brain, internal vs
external fertilization, etc...) - -1. Phylum Porifera
2. Phylum Cnidaria
3. Phylum Ctenphora
4. Phylum Platyhelminthes
5. Phylum Rotifera
6. Phylum Bryozoa
7. Phylum Brachiopoda
8. Phylum Mollusca
9. Phylum Annelida
10. Phylum Nematoda
11. Phylum Arthropoda
12. Phylum Echinodermata
13. Phylum Chordata
-1. Phylum Porifera - -- sponges
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 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 Victorious23. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £8.37. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78998 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now