Stem cells are undifferentiated cells that could develop to perform a variety of tasks. One type of stem cell is the embrionic stem cell. There are also adult stem cells. To use embrionic stem cell you need to have fertilized embrios. These can be donated to research. The use of the embrionic stem cells is controversial for this reason.
Food chain- is a diagram that shows how food energy moves from one organism to another in an environment. It begins with the plant life and ends with animal life. Plants get eaten by animals and animals eat other animals.
Answer:
in spanish-Los términos embrión y feto se refieren al bebé en desarrollo dentro del útero de la madre. ... Un embrión se denomina feto a partir de la undécima semana de embarazo, que es la novena semana de desarrollo después de la fertilización del óvulo. Un cigoto es un organismo unicelular resultante de un óvulo fertilizado.
Explanation:
in english- The terms embryo and fetus both refer to the developing baby inside the mother's womb (uterus). ... An embryo is termed a fetus beginning in the 11th week of pregnancy, which is the 9th week of development after fertilization of the egg. A zygote is a single-celled organism resulting from a fertilized egg.
B because the diploids always line up in the middle on chromosomes
It is c I believe cause the human cells can’t make their own food like plants do when they photosynthesis
