Answer:
Invertebrates include all animals that lack a backbone, or a vertebral column. All chordites exhibit four characteristics during at least one stage of life: a dorsal, hollow nerve chord; a notochord; a tail that extends beyond the anus; and pharyngeal pouches.
Answer:
refer to a pulmonologist for polysomnography evaluation
Explanation:
Based on the information provided within the question it can be said that the next step in managing this child's condition is to refer to a pulmonologist for polysomnography evaluation. This is because the child has a high potential for having sleep apnea since the parents are reporting that the child snores and has frequent throat infections and he does not have a high enough number of GABHS throat infections to warrant tonsillectomy.
Me, whenever I'm doing homework... No just kidding ^^ The answer is C. Owl. Owls are nocturnal creatures.
What do the Gram stain, acid-fast stain, and endospore stain have in common?
A. used on a wet mount of the specimen
B. use heat to force the dye into cell structures
C. outcome based on cell wall differences
D. use a negative stain technique
E. are simple stains
Answer: Option C
Explanation:
The staining can be defined as a procedure which is carried out in order to make the study easy. As many of the bacterial species appear similar and are transparent so staining is done in order to see what bacterial species incorporates what color in them to make the study more easy.
Staining also depends on the type of chemicals present in the cell wall of the organism( cell wall composition). Different organisms have different staining techniques and stains by which they show color.
This ability tells alot about their characters. Like the fast stain bacteria are very hard to stain. They are mycobacterium on which normal stain do leaves any effect because of the cell wall composition. This property states that they are resistant to many of the chemicals . Likewise gram staining and endospore staining is also dependent on the type of chemical that is found in their cell wall.
