Zoology Test 1a

Question 1

eukaryotes

Answer 1

• many cells
• nucleus
• complex
• higher metabolism

Question 2

prokaryotes

Answer 2

single celled

Question 3

animal

Answer 3

• eukaryote
• no cell walls
• multicellular
• motile during part or all of life
• heterotrophs

Question 4

genus

Answer 4

starts with capital letters

Question 5

species

Answer 5

starts with lowercase letter

Question 6

animal characteristics

Answer 6

• symmetry
• organizational complexity
• types of tissues present
• developmental pattern
• segmentation

Question 7

increasing complexity means what…?

Answer 7

reflects evolutionary development through animal history/evolution

Question 8

types of symmetry

Answer 8

• asymmetrical
• radial
• bilateral

Question 9

cross section

Answer 9

across something, like worm

Question 10

longitudinal section

Answer 10

top to bottom of something

Question 11

sagittal section

Answer 11

right down the middle of bilateral animal

Question 12

Protozoan

Answer 12

• tiny animal-like organisms
• different shapes and structures
• located in water
• eukaryotes
• lack cell wall
• have at least one motile stage in life cycle
• heterotrophic
• holozoic
• not monophyletic
• unicellular
• contain organelles
• photosynthetic

Question 13

holozoic

Answer 13

ingest their food

Question 14

saprozoic

Answer 14

absorb it

Question 15

monophyletic

Answer 15

being in the same phylum

Question 16

sequence of taxonomy

Answer 16

kingdom
phylum
class
order
family
genus
species

Question 17

heterotroph

Answer 17

ingest other organisms for food

Question 18

volvox protists

Answer 18

single cells can carry on life independently, clearly unicellular, clump together

Question 19

types of asexual reproduction

Answer 19

• binary fission

- multiple fission or schizogany

Question 20

binary fission

Answer 20

from of mitotic division, nuclei divide

Question 21

multiple fission

Answer 21

also called schizogany, repeated nuclear divisions followed by simultaneous cytokinesis

Question 22

types of sexual reproduction

Answer 22

• syngamy

- conjugation

Question 23

syngamy

Answer 23

fertilization of one haploid gamete by another

Question 24

conjugation

Answer 24

mutual exchange of genetic information, make nuclei and exchange info

Question 25

types of protozoan movement

Answer 25

- cilia - flagella - pseudopodia

Question 26

cilia

Answer 26

tend to move water past the organism

Question 27

flagella

Answer 27

move organisms in the water (can have more than 1)

Question 28

pseudopodia

Answer 28

- move cytoplasm in direction they want to move, and pull it in from behind - pseudo meaning false - pod meaning foot

Question 29

protozoan excretion

Answer 29

- waste composed of nitrogenous material - simple diffusion from high to low concentration - end product id ammonia (NH3-)

Question 30

osmosis

Answer 30

water moves form region of high water concentration to a region that contains low water concentration, moves towards solution with high solute concentration

Question 31

osmoregulation

Answer 31

regulation of H2O

Question 32

what is protozoans mechanism for osmoregulation?

Answer 32

contractile vacuoles

Question 33

contractile vacuoles

Answer 33

pumps in H2 ions, water moves in to fill space, squeezes and pumps water out

Question 34

what are the protozoan groups?

Answer 34

- flagellates - ciliates - amoebas - apicomplexans

Question 35

Euglena

Answer 35

- type of flagellate - has pellicle - a flagella - has chlorophyll....therefore photosynthetic - contains stigma that detects light - autotrophic

Question 36

trypanosoma

Answer 36

- type of flagellate - carreid by the tsetse fly sickle-shape cell with undulating membrane and flagellum - half of people who contract, die; 7-10000 cases - travels in blood - effects the CNS

Question 37

volvox

Answer 37

- type of flagellate - multicellular - single colony can contain 50000 cells - contains flagella, chloroplast and stigma - asexual reproduction in daughter colonies (spring and summer) - sexual reproduction in zygotes - inversion

Question 38

inversion

Answer 38

daughter colonies turn inside-out during development so flagella are on outside

Question 39

microgametes

Answer 39

male

Question 40

macrogametes

Answer 40

female