Answer:
Light travels in straight lines.
Explanation:
Once light has been produced, it will keep travelling in a straight line until it hits something else.
Answer:
zygote, fertilization
(haploid) spores, meiosis
a pollen tube
Differentiation in plants refers to the processes by which distinct cell types arise from precursor cells and become different from each other. Plants have about a dozen basic cell types that are required for everyday functioning and survival. Additional cell types are required for sexual reproduction. While the basic diversity of plant cell types is low compared to animals, these cells are strikingly different. For example, some cells such as parenchyma cells retain the potential to respond to environmental and/or hormonal signals throughout their life and, under the right conditions, can be transformed into another cell type (transdifferentiation). Other cells such as the water-conducting vessel elements undergo cell death as part of their differentiation pathway and thus can never transdifferentiate to another cell type
Read more: http://www.biologyreference.com/Co-Dn/Differentiation-in-Plants.html#ixzz54pAhWVdn
Answer:
High quality of seeds.
Explanation:
92% of the seeds in a seed package will sprout if it has high quality because good quality seeds has the ability to germinate more than those seeds which are not of good quality. If the seed has high quality, it has more than 90% germination rate. If the seeds are infected by some disease or damaged due to mechanical means so these factors also affected the rate of germination.
