Why can some environmental exposures during the embryonic stage be
devastatingly harmful?
because they cause mutations in DNA
because they deprive oxygen from the embryo
because they can affect the development of all parts of the fetus
because they deprive nutrients from the developing embryo



Answer :

In the embryonic stage, environmental exposures can be devastatingly harmful for several reasons:

1. **They can cause mutations in DNA:** Environmental exposures such as radiation or certain chemicals can damage the DNA of the developing embryo. This can lead to genetic mutations that may result in birth defects or predispose the individual to various health problems later in life.

2. **They can affect the development of all parts of the fetus:** Environmental exposures during the embryonic stage have the potential to disrupt the normal development of various organs and tissues in the fetus. For example, exposure to certain toxins or drugs can interfere with the formation of critical structures like the brain, heart, or limbs, leading to serious abnormalities.

3. **They can deprive nutrients from the developing embryo:** Inadequate nutrition due to environmental factors can deprive the developing embryo of essential nutrients needed for healthy growth and development. This can result in stunted growth, developmental delays, or other health issues that can have long-term consequences for the individual.

Overall, environmental exposures during the embryonic stage can have profound effects on the developing fetus, highlighting the importance of ensuring a safe and healthy environment for pregnant women to minimize the risks to fetal development.