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When does the embryo form A. At the end of the first trimester B. A few days after fertilization C. At the end of the third trimester D. In the second trimest?
always
What else can I help you with?
In what trimester of pregnancy does the embryo develop brainwaves and a beating heart?
second trimester
What is the origin of the embryo and the endosperm and the seed?
The embryo is formed from fertilization of the egg cell by the sperm cell, containing genetic material from both parents. The endosperm is formed from the fusion of the second sperm cell with the central cell in the ovule. The seed is formed when the embryo and endosperm are enclosed within the protective seed coat after fertilization.
How does double fertilization happen?
In double fertilization, one sperm reaches the egg and fertilizes it. This produces a diploid zygote that will grow into the plant embryo. A second sperm fuses with the endosperm nuclei in the embryo sac and produces the triploid endosperm. This will nourish the developing seedling.
How many weeks in is the second trimester if pregnancy?
There is also 12 weeks in the second trimester
A key event occurring in the second week following fertilization is?
A key event occurring in the second week following fertilization is the process of implantation. During this time, the blastocyst, which has developed from the fertilized egg, attaches to the uterine lining. This is crucial for establishing pregnancy, as it allows for the exchange of nutrients and waste between the mother and the developing embryo. Additionally, the formation of the placenta begins, which will support the embryo throughout gestation.
Which trimester does The respiratory system becomes mature?
the second trimester
When you start showing are you in your first trimester or second trimester?
You start to show in your second trimester, usually around the fifth month unless you have had many children.
Which trimester does the Facial features develop?
in the second
What trimester is 5 months?
Five months of pregnancy falls in the second trimester. The second trimester typically spans from weeks 13 to 26, which corresponds to months 4 through 6. Therefore, by the time a pregnancy reaches five months, it is well into the second trimester.
Stages are there in pregna cy?
Pregnancy is typically divided into three stages, known as trimesters. The first trimester spans from conception to 12 weeks, during which the embryo develops major organs and structures. The second trimester, from 13 to 26 weeks, involves significant growth, and the fetus becomes more active. The third trimester, from 27 weeks until birth, is characterized by further development and preparation for delivery.
How do i know i am healthy in the 2nd trimester?
You are healthy in your second trimester of pregnancy if the baby is growing right.You are healthy in your second trimester of pregnancy if the baby is growing right.You are healthy in your second trimester of pregnancy if the baby is growing right.You are healthy in your second trimester of pregnancy if the baby is growing right.
What is the difference between pollination and fertilization gymnosperms vs angiosperms?
In gymnosperms, pollination refers to the transfer of pollen to the female ovule, while fertilization is the fusion of the male gamete with the female gamete within the ovule. In angiosperms, pollination occurs when pollen reaches the stigma of the flower, and fertilization happens when the male gamete fuses with the female gamete in the ovule, which is enclosed in the ovary.
