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-Flowering plants undergo double fertilization. The egg fuses with one sperm cell, forming a zygote (fertilized egg) that eventually develops into a multicellular embryo in the seed. The two polar nuclei fuse with the second sperm cell, forming a triploid nutritive tissue called endosperm.
Which explanation describes the function of the mons pubis?, A 47-year-old woman is being seen at the local clinic reporting irregular menstrual cycles. The nurse would explain to the client that the irregularity is most likely due to:, Hormonal regulation of reproductive functions in both the male and the female are complicated processes.
24 maj 2023 · Each of the parts of a flower has a unique function that contributes to the plant’s successful reproduction. Here are the different parts of a flower, their functions, and a look at how pollination takes place.
22 maj 2021 · The outermost whorl of the flower has green, leafy structures known as sepals. The sepals, collectively called the calyx, help to protect the unopened bud. The second whorl is comprised of petals, usually, brightly colored and are collectively called the corolla.
11 wrz 2017 · Although AP2 transcripts are ubiquitous throughout the developing flower, AP2 function is limited to the first and second whorls. This restriction of AP2 function occurs somewhat differently in different flowering plant lineages, and is often dependent on post-transcriptional control mechanisms.
The microspores, or the pollen, contain two cells: the pollen tube cell and the generative cell. The pollen tube cell grows into a pollen tube through which the generative cell travels. The germination of the pollen tube requires water, oxygen, and certain chemical signals.
4 dni temu · Identify and describe the function of different plant parts: leaves, buds, stems, roots, flowers, fruits, and seeds. Know the difference between monocots and dicots, gymnosperms and angiosperms, and annuals, perennials and biennials, as well as understand why these differences matter.
