Exam (elaborations)
BIO 1404 Lab Questions and Answers 100% Pass
- Course
- Institution
BIO 1404 Lab Questions and Answers 100% Pass
[Show more]
Content preview
BIO 1404 Lab Questions and Answers 100% PassTentacles (Sea Anemone) Correct Ans-An elongated flexible unsegmented extension;
surrounds the mouth or oral cavity; used for feeding, grasping or locomotion,
These are hollow
Pedal Disc (Sea Anemone) Correct Ans-The broad, flat base of many sea anemones; used
for attachment to a substrate
Column (Sea Anemone) Correct Ans-Any of various tubular or pillar-like supporting
structures in the body; generally having a single tissue origin and function: the vertebral
column
Pharynx (Sea Anemone) Correct Ans-Muscular tube that protrudes from the ventral side of
the worm and ends in the mouth
Gastrovascular Cavity (Sea Anemone) Correct Ans-Digestive cavity, it distributes nutrients
to distant parts (tentacles because they are hollow), can serve as a hydrostatic cavity
A central cavity with a single opening in the body of certain animals including cnidarians and
flatworms
, BIO 1404 Lab Questions and Answers 100% Pass
Septa (Sea Anemone) Correct Ans-In gastrovascular cavity of sea anemones; curtain like
muscular membranes, have edges that secrete digestive enzyme; increases surface area of the
cavity
Inside are gonads
Acontia (Sea Anemone) Correct Ans-Thread-like defensive organs composed of largely of
nettling cells (cnidae); thrown out of the mouth or special pores when irritated; help further
incapacitate prey inside the mouth
LOCATION: At the bottom of the gastrovascular cavity closest to basal disc
Nerve Net (Hydra) Correct Ans-A web like system of neurons, characteristic of radial
symmetry; such as hydras
This recruits other tentacles when they have food (sea anemone)
Tentecals (Hydra) Correct Ans-When hungry they wave around, have cnidoctyes
Hydra Characteristics Correct Ans-Green: Because they have a endosymbiotic relationship
with algae called zooxanthellae
, BIO 1404 Lab Questions and Answers 100% Pass
Radial symmetry, diplastic, 1 digestive opening
Phylum Platyhelminthes Correct Ans-Flatworm, tapeworms and flukes
1 opening digestive system, 3 germ layers, cephalization, bilateral symmetry, concentration of
neurons (primitive brain), lack respiratory structures
Auricles (Planarian) Correct Ans-Ear-like projections at the base of the head, sensitive to
touch. light, and the presence of some chemicals; contain chemosensory chemicals: these
sense ordor
Eyespots (Planarian) Correct Ans-Highly pigmented region that function in light reception;
light sensitive cells in the epidermis of some invertebrates
Dorsal side
Pharyxn (Planarian) Correct Ans-The muscular tube that protrudes from the ventral side of
the worm and ends in the mouth
, BIO 1404 Lab Questions and Answers 100% Pass
Gastrovascular Cavity (Planarian) Correct Ans-A central cavity with a single opening in the
body of the cnidarians and flatworms; functions in digestion and distribution of nutrients
Diverticula (Planarian) Correct Ans-Secondary branches from the gut; increases surface
area of the digestive tract
HOMOLOGOUS: Septa in a sea anemone; typhosole in the earth worm
Nerve Ladder (Planarian) Correct Ans-The nervous system of the planarians resembling a
ladder; has 2 nerve cords with ganglia (brain) at the anterior end. Transverse nerves that
connect the two cords keep movements of the two sides coordinated
Flame Bulbs (Planarian) Correct Ans-A specialized excretory cell found in the simplest
freshwater invertebrates; function like a kidney, removing waste materials
HOMOLOGOUS: Nephridia in the earth worm; Kidney in the fetal pig
TapeWorm Correct Ans-Parasitic , have become structurally simplified,
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 GOLDTUTORS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81989 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now