A. The sun, because there has been theory’s of the sun being able to heat earth from there being a lot of iron in the middle of earth.
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Answer:
Yes.
Explanation:
The energy released in splitting just one atom is miniscule. However, when the nucleus is split under the right conditions, some stray neutrons are also released and these can then go on to split more atoms, releasing more energy and more neutrons, causing a chain reaction.
Answer: II, IV and V
Explanation:
During the formation of an embryo from a zygote in angiosperms, the following process take place; The division of the basal cell gives rise to the suspensor, which eventually makes connection with the maternal tissue. The suspensor provides a route for nutrition to be transported from the mother plant to the growing embryo.
Meristems produce cells that quickly differentiate, or specialize, and become permanent tissue. Such cells take on specific roles and lose their ability to divide further. They differentiate into three main tissue types: dermal, vascular, and ground tissue. The early root-shoot axis is formed by auxin and cytokinin signaling which participates in regulating a large spectrum of developmental and physiological processes in plants.