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A seed is a(n)_______ .
a. female gametophyte c. mature pollen tube
b. mature ovule d. immature microspore
Step by step
Solved in 2 steps
- Meiosis of cells in pollen sacs forms haploid______ . a. megaspores c. stamens b. microspores d. sporophytesAfter double fertilization, a zygote and ________ form. a. an ovule b. endosperm c. a cotyledon d. a suspensorThe arrival of pollen grains on a receptive stigma is called_____ . a. germination c. pollination b. fertilization d. propagation
- The fertilized ovule gives rise to the ________. a. fruit b. seed c. endosperm d. embryoбуmnosperms Type of spore formed by heterosporous species which give rise to female gametophytes. A. Hetrospores B. Mergasporngiav C. Homospores D. MegasporesThe seed coat forms from the______ . a. integuments c. endosperm b. coleoptile d. sepals
- The small opening in the integument(s) of the angiosperm egg sac through which the pollen tube enters is known as the _________. Select one: a. Microtubule b. Megapyle c. Venter d. Neck-ring cells e. Micropyle f. none of these choices1. Ovary will become the _____. A.seed coat B.fleshy fruit that can be eaten C.whole seed D.endosperm of the seed E.plant embryo 2. If the testes fail to descend, a male is infertile because sperm cell formation is prevented by _____. A.excessive production of estrogen B.none of the choices C.all of the choices D.lack of testosterone E.relatively high internal body temperature 3. An egg develops to an amphibian without being fertilized by an egg. A.Isogamy B.Sporulation C.Parthenogenesis D.Asexual Reproduction E.Sexual ReproductionSeeds are mature_____ ; fruits are mature_____ . a. ovaries; ovules c. ovules; ovaries b. ovules; stamens d. stamens; ovaries
- Match the terms appropriately. ___ ovule a. gamete-producing body ___ cuticle b. spore-producing body ___ gametophyte c. where eggs form ___ sporophyte d. underground stem ___ fruit e. mature ovary ___ endosperm f. nutritive tissue in seed ___ rhizome g. where fern spores form ___ sorus h. secreted waxy layerIn a plant’s male reproductive organs, development of pollen takes place in a structure known as the ________. a. stamen b. microsporangium c. anther d. tapetumSeeds are mature ______; fruits are mature _______.a. ovaries; ovulesb. ovules; stamensc. ovules; ovariesd. stamens; ovaries
