WebApr 3, 2024 · Individual plants may be either bisexual ( hermaphroditic ), in which male and female gametes are produced by the same organism, or unisexual, producing either male or female gametes but not both. A … WebJan 4, 2024 · Which of the following is not involved in the fertilization of fern [CPMT 1984, 90] A) Pollen tube B) Water C) Archegonia D) Flagellated sperms See answer Advertisement Advertisement Parush11 Parush11 Water is the ans of question Advertisement Advertisement New questions in Biology.
In ferns, fertilization does not involve - Toppr
WebAug 9, 2024 · Idealized diagram showing the Polygonum-type embryo sac following double fertilization. During double fertilization, the egg and a sperm unite to form a diploid zygote. The other sperm unites with the polar nuclei to form a triploid primary endosperm nucleus. The antipodals degenerate. The synergids play a role in fertilization, but also ... WebDec 31, 2024 · Fertilization. If moisture is plentiful, the sperm swim to archegonia - usually on another prothallus because the two kinds of sex organs generally do not mature at the same time on a single prothallus. Another method for promoting cross-fertilization: The … longmeadow boys lacrosse max preps
Angiosperm Life Cycle - Digital Atlas of Ancient Life
WebOverview. In vitro fertilization (IVF) is a complex series of procedures used to help with fertility or prevent genetic problems and assist with the conception of a child. During IVF, mature eggs are collected (retrieved) from ovaries and fertilized by sperm in a lab. Then the fertilized egg (embryo) or eggs (embryos) are transferred to a uterus. WebFeb 2, 2014 · It does not have roots, stems or leaves. The gametophyte is a short-lived plant that has both male and female reproductive organs. These produce male and female gametes that combine in fertilisation to … WebThe phenomenon of double fertilization, or two fertilization events, is unique to angiosperms and does not occur in any other type of plant or other organism. As … longmeadow big y number