Basically the seed contains 2 parts, the testa, which is the seed coat that protects the seed and cotelydon, which is the inside of the seed, containing the radical and plumle.
for seed to germinate, we need 3 basic conditions,
warmth, it is the suitable temperature for seed germination, it can influence the activity of enzymes. providing a optimum temperature
water, to soften down the testa so that the shoot can break out from the testa
and oxygen, for aerobic respiration
.
If these conditions are absent, the seed may be in the state of dormancy. where is won't germinate until it meets the suitable conduction.
after that, the enzyme will digest the nutrient inside the seed and provide amino acid, which is necessary to seed germination. and meanwhile the aerobic respiration provides energy, so that the plumlecan shoot out, and be the shoot of the plant.
and then until it grows leaves, it'll start to complete photosynthesis, instead of using the nutrients inside the cotelydon.
Answer:
By using specialized external systems.
Explanation:
To maintain homeostasis, unicellular organisms grow, respond to the environment, transform energy, and reproduce.
An example of <span>nonsubstituted alkane that can exist as one of only two isomers is Butane with molecular formula </span>
<span>.</span>
Isomers are those having the same molecular formula but different chemical structure.
Non-substituted alkane means it is not substituted by any other atom.It has only carbon and hydrogen atoms attached to it.
First thing is we must be informed of what is replication all about. DNA is a molecule and like a codes for the genetic processes. And even during the replication process, RNA is not needed in this process. the RnA has all the information on how to create a code for the protein.
