The question is incomplete as it does not have the options which are:
A) chordate.
B) echinoderm.
C) nematode.
D) mollusc.
Answer:
A) chordate.
Explanation:
The animals can be distinguished based on embryonic development and are categorized into two types: Deutrostomes and the protostomes.
The deuterostomes are the organism in which the small opening in the embryo called the blastopore develops into the anus. The deuterostomes organism belongs to two groups of the animal: the echinoderms and the chordates.
The chordates are the animals which possess the bilateral symmetry that is can be divided into left and right sides and posses true cavity or coelom.
Thus, Option-A is correct.
Answer: Language barriers
Explanation: People from different countries can learn English and understand the daily communication needed to function normally. However, when it comes to expressions, slang and phrases that are characteristic of English, as well as any other language, it is necessary to get into the spirit of the language, i.e. to know something more than the language. It implies a way of life, a tradition, a slang that even varies from country to country within the English speaking area. In other words, more time should be spent in a country where English is spoken so that people can start joking in English and understand slang and use it.
A. the runner's muscles have accumulated lactic acid.. I think. 99% sure
Belonging to the large family of alcohols, propylene glycol is a chemical element widely used by the food industry thanks to its recognized emulsifying properties. It is referable to its acronym E1520. This colorless, low volatile and soluble diol is also used in many other industries. Pharmaceutical, cosmetic, aeronautic, textile industries ... Propylene glycol is involved in the composition of many polymers such as polyester. Non-toxic when inhaled, propylene glycol is used in electronic cigarette filling fluid to produce an aerosol effect comparable to that of smoke.
With respect to polypropylene glycol, each condensation of propylene glycol causes a loss of a water molecule
C3H8O2 + C3H8O2 + C3H8O2 ==> C9H20O4 + 2H2O
