Where is the stem cell of an embryo are the instructions located for how to build a heart

No pain is felt, and for one reason or another, the embryonic stem cells would not have been allowed to produce a new life. The benefits of embryonic stem cell research are potentially great. Embryonic stem cells have the capability to differentiate to any tissue in the body, and potentially could eventually be instrumental in cultured organ replacement or gene therapy.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.