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ZoologyT2D1
Day 1 lecture notes zoology
| Question | Answer |
|---|---|
| Their gut is surrounded by mesoderm; body cavity is lined by mesoderm | Eucoelomate |
| not a body cavity completely lined with mesoderm, open space around endoderm filled with fluid | Pseudo Coelomate |
| -Can support larger body type –i.e. round body type -only longitudinal muscles and no circular scrunching muscles -All have hydrostatic skeleton | Pseudo Coelomate |
| ______ body covering is non living, collagen –protective, and doesn’t allow growth | Cuticle |
| ______have tough outer covering that needs to shed to grow –shedding sets up next life cycle | Ecdysozoans |
| ______have a _________use for feeding and is ciliated –not all Pseudo Coelomate have it | Lophotrochozoa |
| Advantage of Pseudo Coelomate | - can get rid of waste distribute nutrition easier and have space for organs -Digestive track is on cell layer thick –easy to get nutrients into system -Diversity of reproduction is everything possible sexual and asexual |
| This phylum has 2000 species most are fresh water | Phylum Rotifera |
| _____a (wheel organ) lophopher with cilia that sweep food towards its mouth | Rotifer |
| Phylum Rotifera have modified pharynx with grinding plates called | Mastax |
| This phylum -have a complete digestive track -use cilia to move around -Diacheous – have separate males and female ,some species have no males reproduce asexually - Have constant cell # when they divide | Phylum Rotifera |
| This phylum has 500 to a 1000 species world wide | Phylum Acanthocephala |
| Acanthocephala means | spiny headed worm |
| _____attach to the intestine of typically vertebrate host | Phylum Acanthocephala |
| _____head can invert and evert | Phylum Acanthocephala |
| Nutrition is absorbed across the cuticle in _____ | Phylum Acanthocephala |
| This phylum lack a digestive track and have a complex life cycle | Phylum Acanthocephala |
| They arep retty closely related to Rotifers | Phylum Acanthocephala |
| ______has around 100 species aka horse hair worm | Phylum Nematomorph |
| ______have two stages – Juveniles can parasite on arthropods of some sort-Juvenile absorb nutrients out of arthropods gut | Phylum Nematomorph |
| their juvenille Have a digestive track -adult has remnant of juveniles’ digestive track | Phylum Nematomorph |
| These -can alter behavior of host –make a cricket get in water and horse hair emerges/wont | Phylum Nematomorph |
| Their adults are free living | Phylum Nematomorph |
| They have 500,000 species | Phylum Nematoda |
| these are -Round worm -uses sexual reproduction | Phylum Nematoda |
| These lay in excess of 100,000 eggs per day | Phylum Nematoda |
| These play a role as decomposers, NOT all are parasites –they breakdown trees and vegetables -A rotting apple may contain 90,000 nematodes | Phylum Nematoda |
| -1 sq meter of sediment contains 4 million ______-Top soil on farm land contains 3 billion per acre | nematodes |
| Will Parasitize plants and animals | nematodes |
| The largest _______is _____meters long and lives in a sperm well | nematode, 9 |
| ________worm cause elephantiasis, clog the lymph system and cause a backup ...it is a ______ | Filarial nematode |
| These are found in intestinal track in humans and shed more than 200,000 eggs per female per day | Ascaris lumbricoides |
| They infect 1.5 Billion worldwide found in Southeastern U.S. especially the Appalachians | Ascaris lumbricoides |
| Juvenile _______ are passed in ______; they get on soil and live a long time | Ascaris lumbricoides, feces |
| These can cross skin barrier on contact and get into the blood stream …where they go the lungs (bronchi) and then you cough and swallow them into your intestine | Ascaris lumbricoides |
| You can get round worms from raw _______ | veggies |
| trichinosis is caused by _______ | Trichinella |
| These get in muscle tissue of many animals especially pigs | Trichinella |
| it burrows into the intestine and females have live young -live young embed in muscle | Trichinella |
| what are muscle tissue that rearranges to feed young trichinella called | Nurse cells |
| The damage from nurse cells is called _____,it is a visible cyst | measly meat |
| Cooking food well done at ____ degrees will kill Trichinella | 165 |
| _________is difficult to treat, as long as it’s only in the _____it’s easy to treat | Trichinella, gut |
| These are most common in Europe and North America | Trichinella |
| People most likely to get Trichinella are ______ and _______ | wild pig hunters, home pig raisers |
| 30% of kids have them so do 16% of adults | Pinworms |
| A puppy scoots their butt on the ground because of ____ | Pinworms |
| At night ________go the surface (anus) to lay eggs and the migration to the surface itches | Pinworms |
| Pinworm eggs shed in clothes and in sheets last _______ | Pinworms |
| _______therapy is using worm infestation for treatment because the worm’s presence causes a spike in activity in the __________ | Auto immune, immune system. |
Created by:
joefrank1982
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