Copy and complete the following by filling in the blanks A-D with appropriate words.
After one month of pregnancy, the embryo's A is formed. By the end of the 2nd month of pregnancy, the fetus develops limbs and digits. By the end of 3-4th month, most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed. By the end of B the body is covered with fine hair, eyelids separate, and eyelashes are formed.
Copy and complete the following by filling in the blanks A-D with appropriate words.
After one month of pregnancy, the embryo's A is formed. By the end of the 2nd month of pregnancy, the fetus develops limbs and digits. By the end of 3-4th month, most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed. By the end of B the body is covered with fine hair, eyelids separate, and eyelashes are formed.
Pregnancy:
- The gestation phase or pregnancy refers to the development of the fetus from the moment of conception in its mother's womb.
- In humans, the gestation period lasts roughly months, or about days.
- Arms, tail, gill grooves, and the heart are created after the first month.
- The mother notices more frequent movements at the end of the fifth month, and head and body hair appears.
Final answer: After one month of pregnancy, the embryo's arms, tail, gill grooves, and heart are formed. By the end of the 2nd month of pregnancy, the fetus develops limbs and digits. By the end of the 3-4th months, most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed. By the end of the fifth month, the body is covered with fine hair, eyelids separate, and eyelashes are formed.
Pregnancy:
- The gestation phase or pregnancy refers to the development of the fetus from the moment of conception in its mother's womb.
- In humans, the gestation period lasts roughly months, or about days.
- Arms, tail, gill grooves, and the heart are created after the first month.
- The mother notices more frequent movements at the end of the fifth month, and head and body hair appears.
Final answer: After one month of pregnancy, the embryo's arms, tail, gill grooves, and heart are formed. By the end of the 2nd month of pregnancy, the fetus develops limbs and digits. By the end of the 3-4th months, most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed. By the end of the fifth month, the body is covered with fine hair, eyelids separate, and eyelashes are formed.
