Plants constitute an abundant food source. Sometimes we eat the endosperm. Sometimes we eat the ovary (we call it fruit). Sometimes we eat the leaves. Sometimes we eat the roots. Which of these is produced by double fertilization?

Endosperm is produced by double fertilization.

Explanation:

Double fertilization is a process of fertilization in which one sperm cell combine with egg cell produces embryo while other sperm cell joins with polar nuclei forming endosperm. Embryo is baby plant and endosperm is the part of fruit and grains we eat. For example, in mango fruit, seed is the embryo while the part we eat is the endosperm.

satellites are frequently used to make observations of the orbit on earth

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.