Animal architecture/porifera/cnidocides

Question 0

Metazoans

Answer 0

Multi cellular heterotrohs

Question 1

Multicellular Heterotrohes

Answer 1

an organism deriving its nutritional requirements from complex organic substances.

Question 2

Collagen

Answer 2

Three stranded protein unique to animals

Ropelike fibers strong and flexible, movement still possibly

Question 3

Diploid/sexual reproduction

Answer 3

Diploid- 2 sets of chromosomes
Diploid parents create diploid offspring
No free living haploid

Question 4

Homeobox (HOX) genes

Answer 4

Determine position of cells differeny
Control early development
Specific sequence of 180 nucleotides called homeobox

Question 5

Radial symmetry

Answer 5

Several planes

Question 6

Bilateral symmetry

Answer 6

One plane

Question 7

Frontal

Answer 7

Divides into dorsal & ventral halves —

Question 8

Sagital

Answer 8

Divides into right & left halves |

Question 9

Transverse

Answer 9

Separates anterior & prosterior portions

Question 10

Cephalization

Answer 10

Differentiating of the head(nervous) end & back end

Question 11

Radial cleavage

Answer 11

Parallel or perpendicular to vertical axis (uniform)

Question 12

Spiral cleavage

Answer 12

Diagonal to vertical line (ball)

Question 13

Endoderm

Answer 13

Lining of digestive tract; organs

Question 14

Mesoderm

Answer 14

Muscles, organisms

Question 15

Ectoderm

Answer 15

Surface cover

Question 16

Blastopore

Answer 16

the opening of the archenteron to the exterior of the embryo at the gastrula stage.

Question 17

BlastulA

Answer 17

is a hollow sphere of cells, referred to as blastomeres, surrounding an inner fluid-filled cavity called the blastocoele formed during an early stage of embryonic development in animals.

Question 18

Blastocoel

Answer 18

the fluid-filled central region of a blastula

Question 19

Gastrulation

Answer 19

Forming of the gut tube (and three germ layers)

Question 20

Gastrocoel

Answer 20

: the cavity of the gastrula of an embryo forming a primitive gut

Question 21

Ceolom

Answer 21

Fluid filled body cavity between outer body wall & the gut, forms inside mesoderm

Cushions organs
Allows flexibility
Serves as hydrostatic skeleton
Allows organs to grow & move independently

Question 22

Protosome

Answer 22

Mouth&raquo_space; anus

Question 23

Deuterosome

Answer 23

Anus&raquo_space; mouth

Question 24

Benefits of a larger size

Answer 24

- harder to be hunted - helps maintain body temp - more efficient use of energy - reduced cost lf locomotion - improved homeostasis

Question 25

Sessile

Answer 25

Immobile and attached at the base

Question 26

Sexual & Asexual reproduction PORIFERA

Answer 26

- gamete party - BOTH MALE AND FEMALE SEX CELLS. MONOECIOUS - break off a piece of themselves & drift away in bad conditions

Question 27

Spicules

Answer 27

Silica based crystals which set as a skeleton for the sponge, preventing collapse

Question 28

Spongin

Answer 28

A fibrous protein that is the main constituent of the skeleton in certain sponges.

Question 29

Pinacocytes

Answer 29

Cover interior & exterior surfaces

Question 30

Choanocytes

Answer 30

Pull water through sponge, create current

Question 31

Porocytes

Answer 31

tubular cells which water flows through

Question 32

Amoebocytes

Answer 32

Mobile cells that deliver nutrients throughout the body of the sponge

Question 33

Archaeocytes

Answer 33

Move about in the mesohyl performing various functions

Question 34

Spongoceol

Answer 34

Large, central cavity of sponges

Question 35

Osculum

Answer 35

a large aperture in a sponge through which water is expelled.

Question 36

How do sponges get oxygen?

Answer 36

Diffusion

Question 37

How do sponges filter feed?

Answer 37

Water is pulled through the choanocytes and food particles are trapped as waste and water moves out of the osculum. Amebeocytes gather nutrients & deliver throughout

Question 38

Adaptive Radiation due to filter feeding

Answer 38

Centered on elaboration lf the water circulagion and filter-feeding system

Question 39

Motile

Answer 39

Capable of motion

Question 40

Reproduction in CNIDARIA

Answer 40

Polyp - budding, gamete party, monoecious Medusa- dioecious

Question 41

Diploblastic

Answer 41

Two tissue layers

Question 42

Mesoglea

Answer 42

the translucent, non-living, jelly-like substance found between the two epithelial cell layers in the bodies of coelenterates and sponges.

Question 43

Cnidocytes

Answer 43

Contains nematosis (capsule) that contains harpoon w/ barb; venom

Question 44

Hemotoxin (in jellies)

Answer 44

Destroy red blood cells

Question 45

Neurotoxin

Answer 45

poisonous or destructive to nerve tissue

Question 46

Class Hydrozoa

Answer 46

Marine & colonial in form, typical, life cycle includes asexual polyp & sexual medusa ( bell medusa )

Question 47

Class Scyphozoa

Answer 47

Larger jellyfish, "cup" animals

Question 48

Class cubozoa

Answer 48

Medusa is prominent form (box jellies)

Question 49

Class Arthrizoa

Answer 49

"Flower animals" Polyps with flowerlike appearance Anenomeones

Question 50

Dioecious

Answer 50

2 diff genders

Question 51

U gut in cnidaria

Answer 51

Food goes in thru mouth, nutrients gathered, out mouth