Question

male gamete
cluster of cells that develops between the third and eighth week of pregnancy
union of a sperm cell and an egg cell
a female gamete
the process by which the zygote attaches to the uterine wall

1. implantation *

male gamete
cluster of cells that develops between the third and eighth week of pregnancy
union of a sperm cell and an egg cell
a female gamete
the process by which the zygote attaches to the uterine wall

1. embryo *

male gamete
cluster of cells that develops between the third and eighth week of pregnancy
union of a sperm cell and an egg cell
a female gamete
the process by which the zygote attaches to the uterine wall

Explanation:

• Implantation: It is the process where the zygote (formed from the union of sperm and egg) attaches to the uterine wall.
• Embryo: A cluster of cells that develops between the third and eighth week of pregnancy.

Answer:

1. the process by which the zygote attaches to the uterine wall
2. cluster of cells that develops between the third and eighth week of pregnancy