A prothallus is: O a. Atype of gametophyte. O b. Found in the conifers for transporting the sperm. O c. Aprotective cover over the sporangia. O d. Aprotective cover found in cones. O e. A flat sail that helps in wind dispersal of seeds.

Q: An advantage of having reduced gametes in seed plants is the ability to acquire nutrients from its…

A: Plants are majorly divided into 2 types they are vascular plants and on vascular plants. Non…

Q: Which of these pairs is mismatched? a. anther—produces microspores b. carpel—produces pollen c.…

A: The flower is the reproductive unit of some plants (angiosperms). Parts of the flower include…

Q: What adaptation do seed plants have in addition to the seed that is not found in seedless plants?a.…

A: The stage in the life cycle that is found in all plants and certain species of algae is known as the…

Q: Which of the following pairs is mismatched? Select one: o A. Sepal : part of sporophyte o B. Style :…

A: Anatomy is the branch of science that deals with the study of structure and parts of a body. Plant…

Q: b. basal meristem cells continuously produce new spore-generating. c. the foot develops rhizoids and…

A: Hornworts are the type of bryophyte. Bryophytes have gametophytic as a dominant phase of their life…

Q: What separates the gymnosperms from other seed plants?a. a vascular systemb. wind dispersion of…

A: Gymnosperms are a group of plants that include medium-sized trees or tall trees and shrubs. They…

Q: Choose the one answer that fits best. Which of the following statements regarding seed germination…

A: * seed germination is a  process which an organism grows from a seed or spore. *sprouting of a…

Q: Primary vascular tissues are produced by the O a. intercalary meristems O b. ground meristem O c…

A: Introduction: The plant growth is not limited and occurs throughout the whole life of the plant.…

Q: Seed plants lack which of the following structure(s)? (a) ovules surrounded by integuments (b)…

A: Seed plants are those which produce seeds and are also called as spermatophytes. Gymnosperms and…

Q: Where would you look to find the gametophyte generation of aflowering plant?a. at the shoot apical…

A: Gametophyte is the haploid generation found in the life cycle of plants. In the lower plants, the…

Q: Distinguish between the sporophyte and the gametophyte generation in seedless vasculat plants b.…

A:

Q: Seed cones of conifers are more complex than pollen cones. Seed cones are                    cones,…

A: Conifers are the gymnosperms which are never vines, herbs or annuals and they never have bulbs or…

Q: Which of the following statements is not true of the pine life cycle? Select one: O A. the pine tree…

A: The pine plant is found in the gymnosperms. They have naked seeds because the seeds are not covered…

Q: Why is seed dispersal important in the life of plants? What would be the consequences of having…

A: Anatomy and physiology are the branches of biology, anatomy deals with the study of the structure of…

Q: Carpels usually have three parts: a _________________ that catches pollen grains, a _______________…

A: A flower is the reproductive structure of an angiosperm. They give a seemingly unlimited variety of…

Q: Which of the following adaptations facilitated a more full liberation from water for reproduction in…

A: Plants which produce seeds are known as spermatophytes. Gymnosperms and angiosperms are…

Q: Mosses Ferns Pines Oaks Flowers Seeds Wood Xylem and phloem Embryo (b) 4. According to the tree…

A: Out of all the given options,  Option (a) Embryo, Option (b) Xylem and Phloem, Option (c) Woods and…

Q: The hormone______ is a gas. During senescence, this hormone stimulates the formation of the_____ ,…

A: The signal molecules synthesized within the plant body in small quantities that function to regulate…

Q: How does double fertilization occur in flowering plants?a. The two sperm in a pollen tube fertilize…

A: Double fertilization is a characteristic feature of angiosperms in which out of the two sperms…

Q: The following evolutionary trends are seen in the seedless land plants. a. Gametophytes became…

A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…

Q: Which structure is the male gametophyte? the microgametophyte the pollen grain O the megagametophyte…

A: Introduction :  All plants and some algae species have a stage in their life cycle known as the…

Q: Which of the following is not a characteristic of plants? (a) cuticle (b) unicellular gametangia (c)…

A: Introduction :- The outermost covering of plants is the cuticle, which protects leaves, fruits,…

Q: The picture below shows a branch of Douglas fir, an evergreen tree of the Phylum Coniferophyta.…

A: Douglas fir is basically a evergreen conifer tree which are found in North America (western areas).…

Q: Ferns differ from mosses in having: O a. There is no separate gametophyte and sporophyte (each plant…

A: Answer: Introduction: In mosses, the primary protonema (developed in the first stage) develops into…

Q: All of the following statements about the pine life cycle are false EXCEPT: O Cones are homologous…

A: Pine tree is a Gymnosperm.

Q: A fruit is(A) a mature ovary.(B) a mature ovule.(C) a seed plus its integuments.(D) an enlarged…

A: Plants are mainly multicellular organisms, predominantly photosynthetic eukaryotes of the kingdom…

Q: In a plant’s male reproductive organs, development of pollen takes place in a structure known as the…

A: In flowering plants, the plant's male and female reproductive parts called androecium and gynoecium…

Q: Which of the following statements is accurate? a) All plants have identical sporangia, all producing…

A: Both the haploid and diploid phases of plants are multicellular.

Q: Which of the following is false? A. Oak trees have flowers B. Gymnosperms make pollen C. Ferns…

A: Oak trees produce both male and female flowers is true. Gymnosperms have pollens but no flowers,…

Q: Which of the following is NOT regulated by Gibberellins? seed germination b. fruit growth O.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following pairs is mismatched? Select one: o A. Sepal: part of sporophyte o B. Style :…

A: Flower is the reproductive structure of angiospermic plants. It is responsible for producing the…

Q: Which of these is a feature not present in seedless plants that have contributed to the success of…

A: Note: As Per Guidelines, We Can Answer One Question At A Time. Ask Again To get rest answers.…

Q: How may the following trends in plant evolution be adaptive to living on land? (a) dependence on…

A: Introduction Evolution is the process of a species' characteristic changing over several generations…

Q: A new "plant" is found to lack vascular tissue, have a dominant gametophyte generation, and swimming…

A: Plants are the autotrophic organisms that are capable of synthesizing their own food with the help…

Q: What two groups of plants produce seeds? O a. Gymonsperms and Angiosperms O b. Broyophytes and…

A: Ans: The plants which belongs to spermatophytes also referred to as phanerogams or phaenogams…

Q: a. Describe the function of plant roots. b) Describe the function of plant shoots. c)What is the…

A: A) Root, in biology, that piece of a vascular plant regularly underground. Its essential capacities…

Q: Which of following are found in the gametophyte generation of ?mosses إختر أحد الخيارات protonemata,…

A: There is a first generation moss, the gametophyte. The gametophyte produces a sperm and an egg. They…

Q: Leaves of conifers are perennial. Those of bristlecone pine live for at least ____ years, and their…

A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…

Q: Fertilisation in moss occurs when sperms swim from a .. and down the neck of a Options O…

A: Introduction: Mosses refer to a phylum of non-vascular plants. Together with liverworts, they are…

Q: Select all of the following that are true about the fern gametophyte. smaller than the sporophyte…

A: Fern gametophytes  smaller than the sporophytes site of pollen production multicellular produces…

Q: A seed is a(n)_______ . a. female gametophyte c. mature pollen tube b. mature ovule d. immature…

A: A flower is a reproductive structure located in flowering plants ( angiosperms) that is also…

Q: The portion of an embryonic axis that above where the cotyledons are attached and below the first…

A: In plants zygote is produced by the fusion of male and female gamete. This zygote undergoes certain…

Q: A seedling germinating under a stone grows at an angle away from the stone and upward. This response…

A: Plant developments can be characterized as the progressions in the spatial direction or adaptation…

Q: The endosperm of an angiosperm seed can be compared to what in reptilian eggs? O A. Placenta, O B.…

A: c. yolk sac

Q: Which of the following is NOTan adaptation of land plants that provides protection for plant cells…

A: The seeds form a protective coating over the embryo that germinates under favorable conditions of…

Q: lowing phrases best explains how differing maturity levels of the pistil and stamen are beneficial…

A: Stamen is the male reproductive part of the flower and pistil is the female reproductive part of…

Angiosperm Reproduction

The process of sexual reproduction in flowering plants is known as angiosperm reproduction. In flowering plants, reproduction begins with pollination, or the transfer of male gametes (pollen) from the male reproductive organ (anther) to the female reproductive organ (pistil), and ends with fertilization of the female gametes (egg), which produces a zygote, which then grows to become a mature plant.