<u>Answer:</u>
Blastocyst is a structure that subsequently forms the embryo during the process of fertilization.
<u>Explanation:</u>
- In the "innermost layer of the uterine wall" there is endometrium layer, this is where the uterus does the embryo implant.
- The blastocyst stage is the period of embedding the "lining of the uterus".
- But the fertilization of egg is done in the "Fallopian tube" and is later implanted in the uterus.
- Hence blastocyst is the lining structure of the uterus as the implantation of embryo occurs.
This is a easy one! a promoter<span> is a region of DNA that initiates transcription of a particular gene. </span>Promoters<span> are located near the transcription start sites of genes, on the same strand and upstream on the DNA</span>
I think the correct answer from the choices listed above is the first option. The abiotic component that would most likely change in a shallow ocean ecosystem during upwelling would be an increase in oxygen content. Hope this answers the question. Have a nice day.
Glucose and galactose are bond together in the molecule, and lactase assists in the process of separating them through a mechanism called hydrolysis. In lactose a water molecule is inserted across the glucose-galactose bond, adding an oxygen and hydrogen to the galactose.