Answer:
" The marble has no cleavage but calcite which is also a metamorphic rock has the best cleavage. ... Granite is a igneous rock. Granite has no cleavage. Granites cleavage is dull but only when its unpolished. "
Explanation:
<span>The submucosa<span> of the alimentary or the gastrointestinal tract contains numerous glands (i.e. gastric glands in the stomach, Brunner's glands in the duodenum) as well as numerous blood vessels. The submucosa also contains the submucosal nerve plexus or Meissner's plexus which functions to control the secretion of the submucosal glands.
</span><span><em>Another layer that has a nerve plexus is the muscularis layer which has the muscular nerve plexus or Auerbach's plexus which control the contractions of the gastrointestinal tract. The Meissner's and Auerbach's plexus are collective called the enteric nervous system.</em></span></span>
Answer:
The plate that contains Kanamycin in it will have growth of colonies of bacteria that have been transformed with the plasmid which has the kanamycin-resistant gene. The bacterial cells that did not get transformed with this plasmid will not be able to grow into colonies in the presence of kanamycin.
While the negative control, a plate with any other antibiotic,such as ampicillin or tetracyclin, added to it will not allow growth of any bacteria on it.
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Which of the following is an organic growth factor? A) Glucose B) NAD+ C) Peptone D) NH4H2PO4 E) H2O
Answer: B) NAD+ is an organic growth factor.
The full form of NAD is : Nicotinamide adenine dinucleotide.
This compound consists of two nucleotides joined through their phosphate groups. NAD+ is an oxidizing agent.
It important to adjust the light intensity when viewing a specimen with a compound microscope in order to view the proper contrast to view the organism correctly .
What is compound microscope ?
Because it has two different types of lenses that work together to magnify an item, the conventional light microscope used in laboratories is referred to as a compound microscope. The ocular lens is the one that is closest to the eye, and the objective lens is the one that is closest to the target.
<h3>What use does a compound microscope serve?</h3>
Compound microscopes have a high magnification that allows the user to see cells, bacteria, algae, and protozoa on specimens we would identify microorganism.
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