The 'umbilical cord' see the wiki article: http://en.wikipedia.org/wiki/Umbilical_cord
The complete package containing an embryonic plant and its food supply is called a seed. The seed consists of an embryo (the young plant) and endosperm or cotyledons (the food supply) enclosed within a protective seed coat. This structure allows for the plant to survive and germinate when conditions are favorable.
The seed structure that stores food for the embryo is called the endosperm. It provides essential nutrients for the developing plant embryo to germinate and grow.
The placenta is the part of the amniotic egg that supplies food to the developing animal. The yolk provides it with food, and the albumin supplies water and nutrients.The Yolk. Yolk is a sac that is attached to the embryo that supplies food.
endosperm
A seed typically consists of an outer protective coating, an embryo, and stored food reserves to help the plant germinate and grow. The embryo is composed of the radicle (embryonic root) and the plumule (embryonic shoot), which will develop into the root and shoot system of the plant, respectively. The stored food reserves provide essential nutrients to support initial growth until the plant can photosynthesize and produce its own food.
Yolk or blood are food for embryo .
The placenta is the structure that diffuses nutrients from the mother's blood into the embryo's blood. It allows for the exchange of oxygen, nutrients, and waste products between the mother and the fetus during pregnancy.
This describes the basic structure of a seed. Within the seed, there is an embryo that has food reserves within the seed coat.
The supply of stored food in the embryo of beans or peanuts is called the cotyledon. This structure provides essential nutrients for the developing plant until it can photosynthesize on its own.
A spore, which contains no preformed embryonic parts, consists of a single cell. In contrast, a seed usually consists of hundreds or thousands of cells and contains stored food and an embryo.
The mother kangaroo spends most of her adult life pregnant, but in drought times, she has the ability to indefinitely "freeze" the development of the young embryo until food sources are replenished. This is called embryonic diapause. Quite simply, the young joey will not be born until or unless there is enough food to nourish the mother and, through her, the suckling joey.
The embryo in the seed get food from endosperm and perisperm.