The answer is (b.) fertilization
The fertilization is the stage where the egg cell or the
so-called ovum fused with the sperm cell which eventually leads the development
of the embryo or the zygote. The Embryogenesis starts when the zygote undergoes
mitotic divisions or also known cleavage process.
As babies they may reach growth and development milestones later than
other children do. These may include rolling over, sitting,
standing, walking, and talking. As children in this age group,
health problems and developmental disabilities can lead to
behavior problems. For example, a child may develop oppositional
defiant disorder which is a disorder in a child marked by defiant and disobedient behavior to authority figures.
They may get this disorder because he or
she does not communicate well or understand others' expectations. As teens puberty starts
at about the same ages for teens with Down syndrome as for other teens. <span>They may face social difficulties and vulnerabilities <em /><em />such as abuse, injury, and other types of harm. They may also have a
hard time handling strong emotions and feelings. Sometimes these
struggles can lead to metal health problems,
especially </span>depression which could lead to self-harm or even suicide. As adults men with Down syndrome most often are sterile and
cannot father children. Many women with Down syndrome can have children, and
they usually have early menopause which is <span>a natural decline in reproductive hormones when a woman reaches her 40s or 50s but in this case it would usually happen early in Down Syndrome women.
Hope this helps you out on your report is there anything else you want me too help you with? :)
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Answer:
C) exact duplicates of each mother cell are produced.
Explanation:
Scientists classify living things in order to organize and make sense of the incredible diversity of life. Modern scientists base their classifications mainly on molecular similarities. They group together organisms that have similar proteins and DNA.
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