In the change from a five-kingdom classification system to a six-kingdom classification system, one kingdom was divided into two. What was used as a basis for that division?A. similar behaviors
B. genetic differences
C. similar appearances
D. eukaryotic differences

The head of a phospholipid is made of an alcohol and phosphate group.

What is phospholipids?

• Phospholipids are a subclass of lipids that have two hydrophobic "tails" made of fatty acids connected by an alcohol residue. Their hydrophilic "head" contains a phosphate group (usually a glycerol molecule).
• Omega-3 fatty acids EPA and DHA are frequently incorporated into the phospholipid molecule of marine phospholipids. Simple organic compounds like serine, ethanolamine, or choline can modify the phosphate group.
• All cell membranes include phospholipids, which are an essential element. Due to their amphiphilic nature, they can form lipid bilayers.
• For several reasons, including higher bioavailability, decreased toxicity, and greater permeability across membranes, phospholipids have been frequently employed to make liposomal, ethosomal, and other nanoformulations of topical, oral, and parenteral medicines.
• In addition to mixed phospholipid chains with surfactant characteristics, liposomes may also include phospholipids that are phosphatidylcholine-enriched.

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Answer:

The head of a phospholipid is made of an alcohol and glycerol group

The two given terms congenital and strangulated are related to the surgical procedure which is known as hernioplasty. Hernioplasty involves the surgery of hernia, in which the organ is repaired by putting a mesh over the weakened portion of it. Hernia can be defined as the medical condition when a part of the internal tissue, or an organ breaks through a hole in the overlying muscles.

Hence, the answer is 'hernioplasty'.

Answer:

These two terms are related to Hernia repair, hernioplasty,  

herniorrhaphy

Explanation:

Hernia repair or hernioplasty or  herniorrhaphy represents the same terminology and it is a form of surgery which is done usually when a hole occurs in a muscle due to the break down of an organ or tissue. In this surgery, the displaced tissue is brought to its appropriate position.

Strangulation of  hernia is done when any part of an organ or tissue stuck inside hernia thereby blocking the blood supply.  

While Congenital hernia surgery is done when a part of  abdominal organ moves below the hernia sac, .  

The type of enzyme that aresynthesized in an environment where an operon codes for enzymes that synthesizea protein from precursor amino acid molecules are the repressible enzymes. It bindsto the operator and blocks attachment of RNA polymerase to the promoter,preventing transcription of the genes.

Answer:

operator

Explanation: