Related questions
What is the embryonic sac?
Which are the cells that form
the embryonic sac? What are
their ploidies?
The angiosperms are vascular plants that produce flowers and fruits, and they belong to the phylum Magnoliophyta. They make up 95% of all modern land plant species. Examples of angiosperms include roses, apple trees, petunias, corn, grasses, etc.
In angiosperms, the gametophyte is the haploid stage of the plant life cycle, produced from a single spore. The male gametophyte is a pollen grain, and the female gametophyte is an embryo sac.
The ovary of the female flower part may contain one or more ovules, each containing a diploid cell that divides by meiosis to produce four haploid megaspores. In many species, three of these cells disintegrate, leaving one large "megaspore" which undergoes three mitotic divisions to form the embryo sac.
Step by stepSolved in 3 steps
- What generalizationscan you make aboutthe location ofmesoderm, whenpresent, during andafter development?arrow_forwardHow does a simple tube become the complex structures of the brain and spinal cord that generate both thought and movement?arrow_forwardWhat structures carry the egg from the ovaries to the uterus? Are these structures the same in all the examined animal ,how do they differ ?arrow_forward
- Concerning reproductionwhat is the function of thetesticles?arrow_forwardIn the early stages of amphibian development, what layer is involved in yolk digestion? What is the basis for the distinction between germ layers in gastrulation? (min. 5 sentences)arrow_forwardWhat adult structures are derived from each layer?arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education, 
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education