Cell division and differentiation first begins during the germinal stage of prenatal development.
<u>Explanation:</u>
The development of the zygote into a full developed fetus occurs in three most prominent stages they are the germinal stage that occurs from the conception to the second week.
The embryonic stage that is from second week to the eighth week and the fetal stage that is from the eighth week till the birth of the baby. Each stage has its characteristic development that has to be completed.
Answer:
cause the chromosomes are divided in meiosis-1 in pachytene phase
Explanation:
Answer:
The nervous system is made up of the brain, spinal cord and nerves. It is the body's communication system that controls much of what your body does. It allows you to do things like walk, speak, swallow, breathe and learn, and controls how your body reacts in an emergency.
Explanation:
Active transport is the <span>method of material exchange uses up energy.</span>
The space between the parietal layer and visceral layer of the pericardium contains serous fluid. It is a tissue of the hearth.
<h3>What is pericardium?</h3>
The pericardium is one of the three tissues that form the hearth, which also includes the myocardium and epicardium.
The pericardium forms a highly fibrous structure that is capable of holding heart tissues and blood vessels.
Pericardial fluid is composed of a serous liquid that is produced by the pericardium and released into the pericardial cavity.
Learn more about pericardium here:
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