The human reproductive system is different in males and females. When a sperm and egg join, the egg is fertilised and a baby starts to develop. Its mother provides all a baby’s needs until it is born.Fertilisation happens when an egg cell meets with a sperm cell and joins with it. The fertilised egg divides to form a ball of cells called an embryo. The embryo attaches to the lining of the uterus. It begins to develop into a fetus and finally into a baby.The mother’s lifestyle can affect the developing fetus. For example, smoking reduces the amount of oxygen in the bloodstream. This can lead to low birth weight and premature birth (when a baby is born too soon). Drinking alcohol during pregnancy can harm the developing baby’s nervous system, especially its brain.
Birth
It takes about 40 weeks for a baby to develop in the uterus. This time is called gestation. After this, the baby is ready to be born. The cervix relaxes and muscles in the wall of the uterus contract. Waves of muscle contraction push the baby out of the mother's body through the vagina.
It Is this turgor pressure that holds the cell firm and provides the characteristics of of plant structures such as leaves. When a plant has been without water for a very long time the central vacuole lose water which results in the cells losing its shape, and the whole leaf wilts.
An animal without the body cavity is called acoelomic. .......
This organism is a single cell that was isolated from the human body, has no nucleus, and was causing the patient to be ill, in this case is a bacteria.
<h3>What is the concept of bacteria?</h3>
Bacteria are single-celled prokaryotic organisms that are included in the Archaea and Bacteria Domain. Bacteria are fairly simple organisms and belong, according to Whitta's classification of five kingdoms, to the Monera Kingdom.
In this case, Bacteria are prokaryotic and unicellular organisms, that is, formed by a single cell, without a nucleus and with membrane-bound organelles.
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