令人发腻
发表于 2025-3-28 17:34:06
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Exaggerate
发表于 2025-3-28 21:24:05
The Secondary Plant Body,aturation of the primary plant body. In such organisms, lateral meristems differentiate and give rise to secondary tissues. The amount of secondary tissue may be insignificant in the herbaceous forms or in the case of shrubs and trees it may eventually make up most of the vegetative plant body. Of c
aerobic
发表于 2025-3-28 22:59:01
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overture
发表于 2025-3-29 06:49:50
The Root,the soil solution, anchoring the plant firmly in the soil, and storing. various elaborated food materials. Unlike the stem, the root does not usually carry on photosynthesis, and roots have no lateral appendages comparable to leaves.
aneurysm
发表于 2025-3-29 07:30:00
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DEMN
发表于 2025-3-29 13:50:54
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NIL
发表于 2025-3-29 16:42:18
Photobiology,out the thought of plant growth being controlled by and dependent upon rays that travel 186,000 miles per second from a luminous body 93,000,000 miles away. The formation of flowers and other reproductive structures discussed in the previous chapter is often strongly influenced by the light environm
躺下残杀
发表于 2025-3-29 19:56:09
Biological Time Measurement,ice. One wonders whether plants and other animals also have the ability to measure time. Regular patterns of migration or flowering might lead one to suspect that this is the case (daylength could be measured to detect season), but on the other hand, occurrences that take place at a given time of ye
Fulsome
发表于 2025-3-30 01:08:36
The Induction of Reproductive Development by Environment, problem. First, does reproductive development occur in response to some change in the external environment? The answer for many species is an unqualified “yes”. Second, what are the events that take place within the plant that translate some environmental change into a redirection of growth? If the
开花期女
发表于 2025-3-30 06:07:08
The Seed and the Fruit,onvascular plants and in many of the lower vascular plants, the zygote develops immediately into the sporophyte plant (or, in many of the algae, undergoes meiosis). In ., however, the development of the sporophyte may begin to occur enclosed within the female or megagametophyte (Chapters 1 and 13).