Examlex
What is chemical bonding? Explain the differences between covalent and ionic bonding.
Heterochrony
An evolutionary change in the timing or rate of developmental events, leading to changes in size and shape among descendants.
Cleavage
The division of cells during the early stage of embryonic development or a physical split or division.
Germinal Period
The period that begins at conception and lasts until the developing organism becomes attached to the wall of the uterus about 8 to 10 days later.
Prenatal Development
Relates to the process of growth and development within the womb from conception to birth.
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