ch. 28 - seed plants

briefly explain three adaptions of flowering plants that contributed to their evolutionary expansion and success

1. closed carpels and double fertilization for increased likelihood of reproductive success 2. interdependence with animals, particularly insects, for more efficient pollination 3. vessel elements for more efficient water conduction 4. sieve tube elements for more efficient carbohydrate conduction 5. broad leaves for more efficient absorption of light 6. stems and roots modified for food or water storage 7. adaptability of the sporophyte generation to new environments

a plant with floral parts in threes or multiples of three would be classified as a

monocot

compare and contrast monocots and dicots

table 28-2 of the textbook

the most diverse, successful, and familiar group of plants today are the

angiosperms

which group of plants are the most recent to evolve

angiosperms

in a flowering plant, the _____ is the site of meiosis and, ultimately, the production of pollen

anther

why are bees important to the reproductive success of flowering plants

bees carry pollen to other plants

which phylum has very few surviving species, and are tropical and subtropical plants with stout, trunk-like stems, and compound leaves that resemble those of palms or tree ferns

cycadophyta

in flowering plants, the ____ generation is dominant

diploid sporophyte

most conifers are dioecious

false- monoecious

the lowermost and outermost whorl on a floral shoot consists of petals

false- sepals

which is the basic difference between gymnosperms and flowering plants

gymnosperms produce seeds borne naked, while flowering plants produce seeds enclosed within a fruit

a flower that has sepals, petals, and stamens, but lacks carpels, is known as

incomplete and imperfect

what do the large female cones of a pine tree contain

megasporangia

most conifers have separate male and female reproductive parts on the same tree. this condition is referred to as

monoecious

which is an example of a monocot

onions

the female gametophyte generation in angiosperms is found in the

ovule of the ovary

after fertilization in angiosperms, what does the ovule develop into

seed

seeds are superior reproductive structures, compared to spores. describe the advantages of seeds. briefly describe the connection between human civilization and seeds

seeds carry with them nutritive material and are protected by a seed coat; human civilization advanced with the development of agriculture; seeds are relatively easy to collect and store in a dry place for planting the following year or for consumption

what is the function of the sepal of a flowering plant

to protect the flower bud

what is the function of the phloem in plants

to transport dissolved sugars

a fruit develops from the ovary wall

true

what do the xylem and phloem make up of in a plant

vascular tissue

how is the pollen of pine trees primarily disseminated

wind