plant life cycles
Zygote
Which is produced when an egg and a sperm unite during a plant's life cycle?
cuticle
Water loss is prevented by the waxy coating on the leaf called the
Pteridophytes and bryophytes
Which groups are seedless?
Evolution of seed plants
led to diversity of gymnosperms and angiosperms
flowering plants
what are angiosperms
A gametophyte is its haploid phase.
Which best describes the alternation of generations?
the fruit (apple, pear, tomato, etc)
A direct plant source is _______ which humans eat
Angiosperm and Gymnosperm
Which groups have seeds?
Importance of seeds to animals and plant Seeds are hugely important to terrestrial vertebrates
Seeds are hugely important to terrestrial vertebrates
250,000 they are the most diverse group of extant plants
how many named species of angiosperms are there?
Diploid and haploid phases alternate.
What do all plant life cycles have in common?
Gymnosperm
naked seed
Angiosperm, gymnosperm, and pteridophytes
Which groups are vascular?
13,000 spp
Non-seed plants
Flowers - allow pollination strategies
making use of animal pollinators
(but - there are very successful windpollinated angiosperms, too)
Improved means of seed dispersal
(typically involves the "fruit")
Overall, improved reproductive
success in the terrestrial
environment
what makes angiosperms so successfull?
C
This diagram shows the life cycle of plants and the alternation of generations.
Which row in the table contains the correct labels for the plant life cycle diagram?
fibrous root system
has many small roots
Bryophytes
Which groups are nonvascular?
260,000 spp
Seed-bearing plants
Oogamous, heteromorphic
alternation of generations
in scientific terms describe the life cycle of angiosperms
sporophyte
Which term is the name of the diploid stage of the plant life cycle?
cotyledon
embryonic leaf in seed bearing plants
Consisting of cells that make up a tube like structure that transports water
What does vascular mean?
Nonvascular plants
gametophyte dominant, sporophyte fully parasitic
Sporophyte (2N) phase of the life
cycle most prominent
which life cycle phase is most predominant in angiosperms?