CAIE IGCSE Biology 16.4.7 In Early Development the Zygote Forms Questions

Describe how a zygote forms a ball-of-cells embryo that implants into the lining of the uterus.

Exam points

State that in early development the zygote forms an embryo, which is a ball of cells.
State that the embryo implants into the lining of the uterus.

[Maximum number: 3]

Pregnancy can occur after the fusion of a male gamete and a female gamete.

(a)

State the name of the ball of cells that implants into the uterus after fertilisation.

[ 1 ]

(b)

There are many changes that occur in a fetus during pregnancy.

Compare the development of a fetus in the early stages of pregnancy to its development in the late stages of pregnancy.

[ 2 ]

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CAIE IGCSE Biology 16.4.7 In Early Development the Zygote Forms Questions question 1

Question (a)

Question (b)