CORRECT ANSWERS (VERIFIED
ANSWERS)AGRADE
Land plant involved from ? - Answer- A green Alga
500 million years ago an _______ produced diverse groups - Answer- Adaptive
Radiation
Are plants multi-celled - Answer- Yes
Photosythetic eukaryotes adapted to life on.... - Answer- Land
Plants and Charophyte algae share a system of where a new what is formed ? -
Answer- a new cell wall forms after cell division and the arrangement of flagella on
sperm (among those that have flagellated sperm)
Land plants (embryophytes) have an embryo that develops within a chamber of parental
tissues and receives what from it's parent during early development ? - Answer-
nourishment
Plants have a life cycle in which a diploid generation alternates with a haploid one called
- Answer- Alternation of Generation
During the diploid generation, a multicellular ______ produces spores (haploid cells with
thick walls) by_____ ? - Answer- sporophyte, meiosis
Spores germinate, undergo _______and grow into multicelled haploid ________that
produce gametes by mitosis - Answer- mitosis, gametophytes
Male and female gametes meet (fertilization), forming a________ which undergoes and
develops into a new sporophyte - Answer- diploid zygote, mitosis, sporophyte
This fossil of a Land plant dates back to 475 million years ago, which is the earliest
fossil evidence. What is it > - Answer- Spores (haploid cells with thick walls)
The oldest fossil spores resemble spores of... - Answer- modern liverworts
Liverworts, mosses, and hornworts are three early nonvascular plant lineages called -
Answer- Bryophytes
In bryophytes, the gametophyte is larger and longer-lived than the.... - Answer-
sporophyte
, The first seedless vascular plants evolved about how many years ago ? - Answer- 430
million years ago
In vascular plants, the_____ is larger and longer-lived than the______ and has
specialized internal pipelines that transport_____ ? - Answer- sporophyte, gametophyte,
water and sugars
Seed plants evolved about _____ million years ago? - Answer- 385
What kind of plant are vascular plants ? - Answer- Seed plants are ______ that hold
onto their spores and disperse by releasing seeds.
Producing seeds and pollen allowed seed plants to expand into.... - Answer- dry
habitats that seedless plants could not tolerate
Seed plants are also the only plants that produce..... - Answer- Pollen
Two lineages of seed plants survived to the present? - Answer- gymnoperms and
angiosperms (flowering plants)
Gymnosperms include modern conifers such as ? - Answer- pines, firs, and spruces
Flowering plants arose from a gymnosperm ancestor in the late ? - Answer- Jurassic or
early Cretaceous
Land plants are embryophytes how does their embryo form ? - Answer- in a chamber on
the parental body and is nourished by the parent
Three early-evolving plant lineages are known collectively as______ these nonvascular
plants do not produce ______ - Answer- Bryophytes, seeds.
Vascular plants have internal pipelines that transport ? - Answer- water and sugars
True or False
The first seed plants were gymnosperms; angiosperms (flowering plants) are the most
diverse plant lineage, and the most recently evolved - Answer- True
True or False
Land plants face the threat of desiccation and must hold themselves upright - Answer-
True
Over time, the spore-producing bodies of plants became larger, more.... - Answer-
complex, and better adapted to dry habitats