A is the answer because a single cell divides
Answer:
Before cell division must occur, the chromosomes must replicate themselves. Sister chromatids are the two initially identical copies.
The presence of hydrogen bond is one factor that explains the fact that ice floats over water because it has less density.
Due to this, rivers and lakes freeze from the surface whereas it is in liquid state at the bottom which allows the sea animals to survive even in colder temperatures.
Water makes up at least 70% of earth and 65% of our bodies and this property of water is essential for our lives as it maintains the survival.
The answer is c as mitosis is the division of cell into two daughter cells which also helps in the growth of body and also it helps to repair any wound and injury
The administration of prepared antibodies such as those in breast milk is an example of passive immunity.
<h3>
What is passive immunity?</h3>
when the prepared antibodies are directly given to protect the body against foreign agents is called passive immunity.
during the initial days of lactation, the yellowish fluid colostrum is secreted by the mother. it contains abundant IgA-prepared antibodies. during breast milk, it contains these antibodies that give immunity to the infant. it fights against the pathogen. these are an example of passive immunity.
To learn about passive immunity refer to
brainly.com/question/21480961
#SPJ2
