Answer:
to preserve its stability.
to avoid cross contamination.
Explanation:
Biological evidence refers to all biological materials such as hair, tissue, bones, teeth, blood or other bodily fluids etc. These biological materials are collected from the site of crime. These evidences helps in finding the criminals. These biological evidences has to be kept at safe place in order to avoid contamination and preserve its stability so it can be used for solving the problem.
The correct answer is the trophoblast forms two distinct layers.
Under usual conditions, fertilization takes place in one of the fallopian tubes, then the fertilized egg starts to produce its path towards the uterus. By about the fifth day of conception, the embryo ultimately reaches the uterus and gets the implant in the uterine lining or endometrium.
During week II of implantation, the trophoblast layer gets involved by combining with the uterine wall, and during this time the layer of trophoblast differentiates and proliferates into two different layers, that is, cytotrophoblast and syncytiotrophoblast.
This injury is fatal because, The phrenic nerve regulates breathing and operates the diaphragm.
<u>Explanation:</u>
The motor ability is provided by the Nerve called Phrenic nerve to the diaphragm. This is a muscle that is very important for the respiration to take place in human. When a damage or injury occurs to the Phrenic nerve, it may result in the paralysis of diaphragm.
When this is damages there may be difficulties in breathing and only small amount of air can be inhaled. Thus the paralysis of this nerve results in the prevention of the victim to find difficulties in respiration. Thus, the example given is fatal because, the phrenic nerve regulates breathing and operates the diaphragm.
The answer is -1 you pretty much have the right answer
Answer:
<em>The </em><em>toxin </em><em>bind </em><em>to </em><em>receptors </em><em>on </em><em>the </em><em>surface</em><em> of</em><em> </em><em>susceptible</em><em> </em><em>cell </em><em>and </em><em>enter </em><em>them</em><em> </em><em>by </em><em>endocytic </em><em>uptake.</em><em> </em><em>.</em><em>.</em><em>.</em><em> </em><em>With </em><em>the </em><em>exception</em><em> </em><em>of </em><em>pore-</em><em>f</em><em>orming</em><em> </em><em>proteins</em><em> </em><em>toxins </em><em>which</em><em> </em><em>compromise</em><em> </em><em>the </em><em>permiability </em><em>barrier</em><em> </em><em>of </em><em>the </em><em>target</em><em> </em><em>cell </em><em>plasma </em><em>membrane</em><em>,</em><em> </em><em>the </em><em>bacterial </em><em>toxin </em><em>act </em><em>catalytically</em><em> </em><em>to </em><em>modify</em><em> </em><em>substrates </em><em>within</em><em> </em><em>mammalian </em><em>cells.</em>