Botany

2007-03-05 13:37:20 · 4 answers · asked by Anonymous

why does secual reproduction in plants using pollen that can be moved throught the air or by wind, animal vector, provide an evolutionary advantage relative to other groups of plants that do not have this capaility?

2007-03-05 13:26:35 · 2 answers · asked by dave b 2

A-single fertilization
B-double fertilization
C-syngamy generation
D-alternation of generation
E-seed production

2007-03-05 13:26:27 · 2 answers · asked by ertre q 1

A-apical merisems
B-lateral merisems
C-vascular merisems
D-cork merisems
E-tracheids

2007-03-05 13:21:15 · 1 answers · asked by ertre q 1

A-minerals in the ground, water in the ground
B-carbohydrates made in the leaves
C-pollen transport
D-a,b, and c
E-a and b

2007-03-05 13:18:16 · 2 answers · asked by ertre q 1

a- for protection
b- for support
c they live there

2007-03-05 13:14:15 · 1 answers · asked by Lilith 1

A-mesophyll tissue
B-ground tissue
C-protoderm tissue
D-parenchyma
E-collenchyma

2007-03-05 13:12:58 · 2 answers · asked by ertre q 1

A-cycads
B-ginkgoes
C-conifers
D-anthophytes
E-cypress

2007-03-05 13:08:11 · 4 answers · asked by uihe h 1

A-heterospory
B-free water external to the plant
C-high tempertures
D-solar energy
E-insect pollination

2007-03-05 13:06:31 · 2 answers · asked by uihe h 1

A-mosses
B-liverworts
C-hornworts
D-b and c
E-a,b, and c

2007-03-05 13:02:48 · 1 answers · asked by uihe h 1

A-vessel members
B-tracheids
C-sieve tube members
D-a and b
E-a,b, and c

2007-03-05 13:00:06 · 1 answers · asked by uihe h 1

A-stolons
B-rhizoids
C-bulbs
D-suckers
E-adventitious roots

2007-03-05 12:58:22 · 1 answers · asked by uihe h 1

2007-03-05 12:53:02 · 1 answers · asked by Anonymous

A-monoecious plants
B-dioecious plants
C-hermaphroditic plants
D-complete plants
E-determinant plants

2007-03-05 12:23:19 · 2 answers · asked by oiphj w 1

are called

A-rhizoids
B-tap roots
C-fibrous roots
D-specialized roots

2007-03-05 12:18:24 · 1 answers · asked by oiphj w 1

A-amount of nectar
B-color of the nectar
C-color of the flower in visible
D-color of the flower in uv light
E-taste of the ovules

2007-03-05 12:11:00 · 1 answers · asked by oiphj w 1

i need to know y frozen seeds dont sprout and plz be spicific

2007-03-05 12:07:57 · 2 answers · asked by Anonymous

2007-03-05 11:49:23 · 1 answers · asked by Anonymous

A-syngamy
B-embryogenesis
C-double fertilization
D-zygote formation
E-self fertilization

2007-03-05 11:12:41 · 2 answers · asked by mmnhgh j 1

A-they are devices to attract pollinating insects and animals
B-they allow spreading of pollen to flowers of the same or a different plant
C-they get pollinated irrrespective of the conditions
D-they are mechanism by which plants overcome their rooted and immobile nature
E-they are vehicles to secure the benefits of wide genetic outcrossing

2007-03-05 11:08:30 · 1 answers · asked by mmnhgh j 1

A-meristem
B-petiole
C-stele
D-receptacle
E-vein

2007-03-05 10:59:37 · 3 answers · asked by mmnhgh j 1

A-vascular strands
B-appear green
C-all the cells are haploid
D-execpt at the midrib only one cell thick
E-stomata

2007-03-05 10:48:15 · 2 answers · asked by Anonymous

the following

A-bryophytes
B-vascular plants
C-gymnospores
D-angiosperms
E-none of the above

2007-03-05 10:36:59 · 2 answers · asked by Anonymous

A-conifers have recessed stomatal opening
B-conifers have needle like leaves in clusters of two to five per bundle
C-the gametophyte generation is the most conspicuous generations
D-all conifers are heterosporus

2007-03-05 10:32:16 · 2 answers · asked by Anonymous

rhizoids

A-liverworts
B-hornworts
C-mosses
D-algae
E-cycads

2007-03-05 10:26:42 · 1 answers · asked by Anonymous

A-their gametophytes and sporoesphytes are both photosynthetic
B-their sporophytes are much smaller than the gametophytes
C-underground stem is called rhizome
D-their leaves are called fronds
e-clustered, stalked sporangia called sori arise on the backs of the fronds

2007-03-05 10:09:51 · 2 answers · asked by jkjkj l 1

A-gynoecium
B-microspores
C-perianth
D-stigma
E-style

2007-03-05 10:03:57 · 3 answers · asked by jkjkj l 1

a-root pressure
B-evaporation
C-osmosis
D-adhesion of water molecules
E-cohesion of water molecules

2007-03-05 10:01:39 · 3 answers · asked by jkjkj l 1

A-rhizome
B-thorn
c-tuber
d-corm
e-tracheid

2007-03-05 09:58:23 · 1 answers · asked by jkjkj l 1

A-iron
B-potassium
C-phosphorus
D-nitrogen
E-sulfur

2007-03-05 09:48:26 · 3 answers · asked by Anonymous