Key Haploid (n) Diploid (2n) Mature flower on sporophyte plant (2n) Germinating seed G Nucleus of developing endosperm (3.n) Anther -Embryo (2n) -Endosperm (food supply) (3n) Seed Seed coat (2n) Female gametophyte (embryo sac) Zygote (2n) FERTILIZATION € Ovary Microsporangium Microsporocytes (2n) MEIOSIS Microspore (n) Ovule with megasporangium (2n) Male MEIOSIS Polar nuclei Antipodal cells. Synergids- Egg (n)- Egg nucleus (n) Discharged sperm nuclei (n) Generative cell Tube cell gametophyte (in pollen grain) Stigma Pollen Megasporangium tube Sperm Surviving megaspore Pollen tube -Style -Pollen tube Sperm Pollen grains

Q: Identify distinguishing characteristics of gymnosperms.

A: Gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and…

Q: Describe the common mode of reproduction in Angiosperms

A: The reproductive parts of a flower are represented by the stamens and pistils. It is made up of a…

Q: List and briefly describe at least three adaptations that have contributed to the evolutionary…

A: Angiosperms include the flowering plant and have around 300,000 species. It is the most diverse…

Q: Name the smallest angiospermic flower.

A: Angiosperms are vascular fruit-bearing plants or trees that have distinct stem, root, and leaf.…

Q: Which gymnosperm family has fleshy, drupaceous appearing fruits?

A: The plant body is complex, made up of several systems. Each system in the body has a distinct…

Q: Discuss the significance of angiosperms to humans and natural ecosystems. (make it short please)

A: Introduction Angiosperms are flower-producing plants that constitute around 300,0000 species. They…

Q: Discuss the evolutionary advances made by Pterophytes, Gymnosperms and   Angiosperms.

A: Pteridophytes are a type of vascular plants which disperses by the means of spores. They are also…

Q: Marine angiosperms form a significant component of the sea grass, mangroves and salt marsh…

A: The study of interaction between the organisms and their environment is called ecology. Living…

Q: Which statement below is correct regarding the formation of the endosperm in angiosperms? O the…

A: Endosperm is nutritious part present near the embryo. It is triploid in nature.

Q: Explain, the differences between plant generations, include: 1) how can you tell which is dominant…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: gymnosperms heterosporous or homosporous? Explain what this means. What are the evolutionary…

A: Gymnosperms are vascular seeded plant which do not produce flowers , and bear needle leaves They…

Q: What are parthenocarpic fruits? Also gives an example.

A: Parthenocarpy can be defined as the development of fruits without undergoing fertilization. The…

Q: State the basic differences between angiosperms and gymnosperms.

A: Gymnosperms and Angiosperms are major two groups of vascular seed plants. These two represent 80…

Q: Name three major types of angiosperm secondary metabolites,and explain how these affect animals.

A: The angiosperms are the upper plants that are evolved and modernized from the traditional species.…

Q: Describe the major evolutionary adaptation that allowed gymnosperms to be able to move on to dry…

A: Plants are organisms with eukaryotic cells having cell walls and are capable of synthesizing their…

Q: What characteristics of angiosperms have allowed this group ofplants to dominate Earth?

A: Angiosperms which are also referred to as flowering plants are the most dominant and distinct group…

Q: Why does the ocotillo not drop its leaves at a singlepredictable time each year, as do temperate…

A: The ocotillos is the most commonly seen and adaptable desert plant which grows in the desert…

Q: Double fertilization evolved independently in gnetophytes and in flowering plants. Name two other…

A: Fertilization is a sexual reproduction process in plants wherein the male gamete that is pollen…

Q: List the major groups of gymnosperms.

A: Gymnosperm are the plants in which seeds are not enclosed in an ovule.       They are present all…

Q: Name the chromosomes present in endosperm.

A: Flowers are the specialized organs to perform sexual reproduction in the angiosperms. A typical…

Q: Why is ovule naked in gymnosperm?

A: Gymnosperms are known as plants with naked seeds or seed plants without flower. They have vascular…

Q: What do you think is the evolutionary advantage(s) of heterospory over homospory? Do you think it…

A: Plants are living things that belong to the Plantae kingdom. Among the organisms found there are…

Q: Name the female sex organs of bryophytes, pteridophytes and gymnosperms.

A: All plants come under the kingdom Plantae. They are eukaryotes, multicellular, and having cell…

Q: The life cycle of the flowering plants and the gymnosperms is different in many ways. One way that…

A: Gymnosperms and angiosperms are two highly advanced groups of plants. On the other hand, both of…

Q: What is the advantage of the evolution of various floral inflorescences in different angiosperm…

A: Conflicting theories approximately the origins of irregular flowers and how they have coevolved with…

Q: This is Ephedra and it is in the Gymnosperm phylum that most closely resembles Angiosperms. Name…

A: Gymnosperm are plants that possess naked seeds and have cones ( male and female) as their…

Q: What is economic importance of gymnosperms?

A: Gymnosperms are the seed plants and are characterized by the production of naked seeds.

Q: When the environmental temperature is higher than its body temperature, a toucan (a bird with a very…

A: Toucans are tropical birds that live in warm and humid environments. Despite the warm conditions,…

Q: Discuss the life history of an angiospermic plant.

A: Angiosperms are vascular fruit-bearing plants or trees that have distinct stem, root, and leaf. They…

Q: Explain why the gymnosperms do not produce fruits.

A: Gymnosperm constitutes one of the two major subdivisions of the Spermatophyta division. The…

Q: Explain the feature of gametes, sporophtes,embroy,zygote in the life cycle of angiosperm?

A: Spermatophytes include plants bearing ovules enclosed in a protective cover called ovar. Such plants…

Q: what evolutionary advantage does double fertilization provide angiosperms over gymnosperms?

A: Double fertilization is a fertilization mechanism of flowering plants.

Q: The Plant Life Cycle What was the major evolutionary adaptation that ferns underwent? WI

A: Ferns are pteridophytes. The group is also referred to as polypodiopsida. It reproduce through…

Q: Give two examples of gymnosperms.

A: Gymnosperms plants are known to carry seeds that are naked. Also, the xylem and phloem tissue lack…

Q: Explain the origin of the name “gymnosperm.”

A: Introduction Conifers, cycads, Ginkgo, and gnetophytes are among the gymnosperms, a clade 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.