A child is born

Hi,

Swedish photographer, Lennart Nilsson, spent 12 years of his life taking pictures of the foetus developing in the womb. These incredible photographs were taken with conventional cameras with macro lenses, an endoscope and scanning electron microscope. Nilsson used a magnification of hundreds of thousands and worked right in the womb. His first photo of the human foetus was taken in 1965.

6 months.
There are still 8-10 weeks ahead, so the little human is getting ready to leave the uterus. It turns upside down because it will be easier to be born this way

26 weeks

20 weeks: Approximately 20 cm. Woolly hair, known as lanugo, covers the entire head

19 weeks

8 weeks: Approximately 14 cm. The foetus can now perceive sounds from the outside world

The skeleton consists mainly of flexible cartilage.
A network of blood vessels is visible through the thin skin.

16 weeks.
The foetus uses its hands to explore its own body and its surroundings.

10 weeks.
The eyelids are semi-shut. They will close completely in a few days.

Eight weeks.
The rapidly-growing embryo is well protected in the foetal sac.

40 days.
Embryonic cells form the placenta. This organ connects the embryo to the uterine wall allowing nutrient uptake, waste elimination and gas exchange via the woman's blood supply.

5 weeks: Approximately 9 mm. You can now distinguish the face with holes for eyes, nostrils and mouth.

four and half weeks

four weeks

The brain starts to develop in the human embryo.

8 days.
The human embryo is attached to a wall of the uterus.

5-6 days.
The clump has developed into an embryo, containing many more cells,
and has entered the womb

The winning sperm

The fallopian tube

Will they have a date?

An egg

Sperm in the fallopian tube

The miracle of a baby!

Cheers

Pollination and sexual reproduction in plants

Hi,

Pollination involves flowers and pollen grains. The agents of pollination could be insects such as bees, ants, bats and other animals that visit flowers to get their food- pollen grains and nectar.

After the pollen grain is successfully transferred from the anther to the stigma, fertilisation process will kick in. This process is different from that in animals as the pollen grain germinates and grows a pollen tube will allows the male gamete to travel through the tube to the ovule.

Flowers go to great lengths to avoid self-fertilisation and prefer cross-fertilisation. It is fascination to see this processes employed in the different species of flowering plants.


Watch these two videos to clarify these concepts.










Cheers