Unit 2 Quiz

Question 1

What is the other name for protonephridia cells?

Answer 1

flame cells

Question 2

what do flame (protonephridia) cells do?

Answer 2

couple of cells

remove nitrogenous waste (from the breakdown of amino acids) from bodily fluids

Question 3

What is the simpler version of kidneys and nephrons?

Answer 3

protonephridia or flame cells

Question 4

What is the outermost layer on a flatworm?

Answer 4

tegument

Question 5

What is tegument used for?

Answer 5

defence against the host immune system

Question 6

What is syncital?

Answer 6

when a cell is fused together with two nuclei

Question 7

What is cuticle?

Answer 7

exoskeleton of molting animals the ectoza made of collagen and sometimes other materials

Question 8

What is a hydrostatic skeleton?

Answer 8

water stiffened skelaton

Question 9

What is the first part of prophase?

Answer 9

The DNA is unraveled (chromotin) and it has a nuclear envelop

Question 10

What is the 2nd part of prophase?

Answer 10

Dna must condence into chromosomes
Centrioles must form on both sides of the nucleus to form spindle fibers
Nuclear envelop must disolve

Question 11

During the beginning of prophase, what form is DNA?

Answer 11

chromotin

Question 12

What happens in metaphase?

Answer 12

the motor protein connect to the chromosomes

Question 13

At what part of a chromosome is a motor protein connected?

Answer 13

Kinecticore

Question 14

What do we call the tip of chromosome?

Answer 14

Telemeres

Question 15

During Anaphase, chromosomes seperate and move to opposite sides of the cell. What does the prefix ana means?

Answer 15

Against; opposite

Question 16

What premix means last or termenal?

Answer 16

telo

Question 17

The spindle fibers that motor proteins are made up of what?

Answer 17

actin or microtubulars

Question 18

During telophase, if cytokinisis fails to occur, what kind of cell forms?

Answer 18

syncital

Question 19

Syncital hypthesis has what kinds of symmetry?

Answer 19

Bilateral

Question 20

If a sperm and egg meet, what forms?

Answer 20

zygote

Question 21

When a zygote forms and divides to a 16 cell hollow sphere, what is it called?

Answer 21

Blastula

Question 22

If the blastula falls on itself, and has 2 tissue layers is called what?

Answer 22

diploblastic

Question 23

Animals that are diploblastic tend to show what kind of symmetry?

Answer 23

radial

Question 24

What is a gastula?

Answer 24

32 cells

Question 25

What are the parts of a triploblastic gastula?

Answer 25

endoderm ectoderm mesoderm

Question 26

In a gastula, if the opening formed the mouth first, what is that called?

Answer 26

protostome

Question 27

In a gastula, if the opening formed the anus first, what is that called?

Answer 27

Deutostome

Question 28

what is a stoma?

Answer 28

hole or opening

Question 29

What are the two animal groups that lack tissue?

Answer 29

Porifera | Placozoa

Question 30

What group of animals was the first to show proper nerve tissue?

Answer 30

Cnideria

Question 31

Cnydaria has which two body forms?

Answer 31

medusa and polyp

Question 32

Cnydarians that fall in the polyp form are what?

Answer 32

Anthazoa

Question 33

What are scyphoza?

Answer 33

jellyfish

Question 34

cnydocytes (the stinging cells) come from what mytholical name?

Answer 34

Cnyades

Question 35

What group of animals contain the comb jellies?

Answer 35

Ctenophore

Question 36

What makes the comb jellies light up?

Answer 36

luciferas

Question 37

What is the sense organ in ctenaphores that lets it know its relation to gravity?

Answer 37

Statistis

Question 38

What group of animals were the first to show a head?

Answer 38

flat worms | platehelminthes

Question 39

What two terms describe the gut of a cnydarian?

Answer 39

2 way | incomplete gut

Question 40

Why do flatworms have a incomplete gut?

Answer 40

they are so small | parasitic

Question 41

The parasitic flat worm have what structure that allows it to invade the immune system?

Answer 41

tegament

Question 42

What kind of skin does a flat worm have?

Answer 42

syncital

Question 43

What is a cesto?

Answer 43

tape worms

Question 44

What class of flatworms contains the flukes?

Answer 44

trematodes

Question 45

What is the life cycle of flukes?

Answer 45

Larva larva grows into a snail then it eats little bits of snail to grow until it is big enough to live outside the snail Then it looks like a snail with dreadlocks (flukes) Then it either attaches to animals and cuts itself into your muslces Then another animal will eat something and the fluke will be released into the digestive tract It mates and then the process happens over again (3 phases, 2 hosts)

Question 46

What 2 groups divde the protostomes into two?

Answer 46

Siliated larva: laphtrocazoas | ectozoa

Question 47

What trait defines the group ectozoa?

Answer 47

extosketalton (they molt)

Question 48

Animals that have an exoskelaton must what?

Answer 48

mult and grow a new skin

Question 49

What is an example of ectozoa?

Answer 49

nematodes

Question 50

What is the definition of a true tissue?

Answer 50

More than one cell type A layer of Extra Cellular Matrix seperates the tissue baselflamina

Question 51

Our skin being glued to our muscles is what?

Answer 51

baselflamina