Organismal Biology Flashcards Preview

Bio 111 > Organismal Biology > Flashcards

Flashcards in Organismal Biology Deck (51)
Loading flashcards...
31

evidence that animals are monophyletic

- similar gene sequences

32

evidence that animals are monophyletic

- similar extracellular matrix molecules

33

evidence that animals are monophyletic

unique types of junctions between cells

34

what types of junctions between cells are there?

tight junctions

35

what types of junctions between cells are there?

desmosome

36

what types of junctions between cells are there?

gap junction

37

what does porifera mean?

pore bearing

38

how many species of sponges are there?

9000 species

39

most sponges are

marine

40

when are sponges motile?

as larvae

41

sponge morphology is highly...

variable

42

where do waste products go out of the from the sponges?

osculum

43

how do sponges reproduce?

asexually through: FRAGMENTATION and BUDDING

44

what is fragmentation

not self-induced brought about by waves or preators

45

what is budding

clone of parent

46

whats a form of sexual reproduction

hermaphroditic

47

what is hermaphroditic

sperm and eggs are produced in choanocytes of ameobocytes

48

where do eggs develop/

extracellular matrix

49

features of extracellular matrix

-non cellular
-collagen, glycoproteins
- some support

50

features of spicules

-CaCO3
-SiO2
-provide rigidity

51

features of spongin

-protein fibers
-flexible support