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Biodiversity > Moss Life Cycle > Flashcards

Moss Life Cycle Flashcards

1
Q

Archegonia and Artherida are

A

monoecious

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2
Q

Monoecious means …

A

both sexes are found in the same plants

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3
Q

Division Anthocerophyta organism

A

hornworts

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4
Q

how many species are in Division Anthocerophyta?

A

100 species

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5
Q

hornworts have a long…

A

horn like sporangia

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6
Q

a flat thallus is called

A

gametophyte

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7
Q

2 characteristics that distinguish the liverworts and mosses

A

1.) cells contain a single large, platelike chloroplast
2. hornworts do not have a stalk and is green and grow from the ground

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8
Q

hornworts have a symbolic relationship with

A

cyanobacteria

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9
Q

hornworts and cyanobacteria because they are going to…

A

fix nitrogen to make useable by their host plants

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10
Q

gameotrophs have pores and cavities that are filled with

A

mucilage

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11
Q

In mucilage, cyanobacteria converts…

A

nitrogen gas into a form of nitrogen

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12
Q

Division Hepatrophyta organism

A

liverworts

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13
Q

how many species are in liverworts and what color are they mostly?

A

9,000 and green

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14
Q

Thallus of liverworts

A

gametophytes

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15
Q

Division Hepatophyta reproduction is… and what holds them?

A

asexual and gemmae cups that hold gemmae

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16
Q

phylids

A

leaf like structure

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17
Q

caulids

A

stem like structure

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18
Q

Vascular plants such as

A

seedless vascular plants

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19
Q

gymnosperms are

A

no flowers

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20
Q

angiosperms are

A

the most advanced specification of plants

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21
Q

vascular plants contain 2 groups which are

A

lycopodiophyta and monilophyta

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22
Q

Vascular systems are

A

tissues that are specialized for transportation of water and any materials from one part of the plants to another

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23
Q

the two main structures of vascular system

A

xylem and phloem

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24
Q

xylem

A

conduct water and minerals from soil using the roots to the top of the plant

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25
Q

phloem

A

conduct the products of photosynthesis from the production sites to the other sites

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26
Q

seedless vascular plants have

A

true roots, cuticle, and stomata in leaves

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27
Q

seedless vascular plants are characterized by having

A

lignin

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28
Q

lignin is

A

an organic polymer

29
Q

lignin is found in

A

cell wall and provide structual support

30
Q

vascular plants develop branching ____ generation

A

independent

31
Q

vascular plants allow more

A

spore production and complex growth patterns

32
Q

microphyllas

A

came about from sporangia

33
Q

megaphylls

A

arose from a flat portion of branching system

34
Q

Heterospory produces

A

2 types of species

35
Q

2 types of species in heterospory

A
  1. large megaspores (female)
  2. small microspores (male)
36
Q

male or female: magagametophyte

A

female

37
Q

male or female: microgametophyte

A

male

38
Q

most vascular plants are

A

heterospores

39
Q

homospory produces

A

one type of spore

40
Q

what is the earliest vascular plant?

A

homospory

41
Q

Lycophyta organism

A

club mosses

42
Q

sphenophyta organism

A

horsetails

43
Q

psilophyta organism

A

whisk ferns

44
Q

pterophyta organism

A

ferns

45
Q

what is the earliest group of seedless vascular plants?

A

lycophyta

46
Q

what structure does lycophyta have?

A

leaf-like

47
Q

what division dominated the landscape in the carbonferous period?

A

lycophyta

48
Q

where does lycophyta grow?

A

into long trees and formed large forest

49
Q

what kind of roots does lycophyta have?

A

true branching roots

50
Q

lycophyta has ___ in ___-___ clusters (___)

A

sporangia in club-like clusters (strobili)

51
Q

sporophyll

A

leaf that bears sporangia (spores)

52
Q

equisetum is the only extant species of what division?

A

Sphenophyta

53
Q

horsetail’s cell wall contains…

A

silica (rough texture)

54
Q

where is Sphenophyta found?

A

in damp environments

55
Q

whisk ferns had how many roots and leaves?

A

none of either

56
Q

why does psilophyta have no leaves and no roots?

A

due to evolutionary reduction by a process of natural selection

57
Q

photosynthesis is horsetails takes place in

A

the green stem

58
Q

horsetail grows a form of synthetic relationship through

A

rhizomes

59
Q

rhizomes are stems that

A

grow underground horizontally

60
Q

rhyzoids grow underground

A

vertically underground

61
Q

ferns are in what division?

A

Pterophyta

62
Q

Pterophyta require what for reproduction

A

water or moist envronments

63
Q

ferns are mostly…

A

terrestial

64
Q

the leafy part of the fern is called?

A

sporophyte

65
Q

how long can the sporophyte live for?

A

hundreds of years

66
Q

ferns have ___ true ___

A

fonds true leaves

67
Q

fiddlehead

A

curled form of a young frond

68
Q

where is sori found?

A

on the under surface of the leave

Biodiversity (7 decks)

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