Answer:
In plants photosynthesis occurs in two steps light-dependent stage and light-independent stage.
ATP is energy carrier and NADPH is electron carrier and both are produced during the first step from the sunlight as they carry the energy and electron to the next step which is light-independent step. In this step both ATP and NADPH are used in the formation of sugars from carbohydrates.
Therefore, these molecules connect the light-dependent and light- independent reactions of photosynthesis.
Germ layer is a primary layer of cells found in the embryo. The three primary germ layers that generate most of the cells in the developing mammalian forelimb are ectoderm, mesoderm and endoderm.
Ectoderm forms the outer component of a mammalian body such as skin, hair, etc. Endoderm forms the inner layer that comprises of the linings of digestive system, lungs and thyroid. Mesoderm is the middle layer that forms the skeletal system, heart, etc.
Neural tube is generated by the inward folding of the ectoderm. This process is called neurulation. Ectoderm also forms neural crest.
All of the following are forms of energy a living organism can use except nuclear energy. Nuclear energy is the use of nuclear reactions that release nuclear energy to generate heat ( thermal energy is being transferred between two objects).Exposure to any radioactive material and energy is bad because the nuclear energy damages human body and cells.
Extinct: (of a species, family, or another group of animals or plants) having no living members; no longer in existence.\
Extinction: the fact or process of a species, family, or another group of animals or plants becoming extinct.
