QUES: No single feature distinguishes Annelids from other invertebrate phyla, but they have a distinctive combination of features. Their bodies are long, with segments that are divided externally by shallow ring-like constrictions called annuli and internally by septa ("partitions") at the same points, although in some species the septa are incomplete and in a few cases missing. Most of the segments contain the same sets of organs, although sharing a common gut, circulatory system and nervous system makes them inter-dependent. Their bodies are covered by a cuticle (outer covering) that does not contain cells but is secreted by cells in the skin underneath, is made of tough but flexible collagen and does not molt – on the other hand arthropods' cuticles are made of the more rigid α-chitin, and molt until the arthropods reach their full size. Most annelids have closed circulatory systems, where the blood makes its entire circuit via blood vessels.
What is an annelid's cuticle made of?

ANS: collagen

QUES: In Homer's Iliad, the names Danaans (or Danaoi: Δαναοί) and Argives (Argives: Αργείοι) are used to designate the Greek forces opposed to the Trojans. The myth of Danaus, whose origin is Egypt, is a foundation legend of Argos. His daughters Danaides, were forced in Tartarus to carry a jug to fill a bathtub without a bottom. This myth is connected with a task that can never be fulfilled (Sisyphos) and the name can be derived from the PIE root *danu: "river". There is not any satisfactory theory on their origin. Some scholars connect Danaans with the Denyen, one of the groups of the sea peoples who attacked Egypt during the reign of Ramesses III (1187-1156 BCE). The same inscription mentions the Weshesh who might have been the Achaeans. The Denyen seem to have been inhabitants of the city Adana in Cilicia. Pottery similar to that of Mycenae itself has been found in Tarsus of Cilicia and it seems that some refugees from the Aegean went there after the collapse of the Mycenean civilization. These Cilicians seem to have been called Dananiyim, the same word as Danaoi who attacked Egypt in 1191 BC along with the Quaouash (or Weshesh) who may be Achaeans. They were also called Danuna according to a Hittite inscription and the same name is mentioned in the Amarna letters. Julius Pokorny reconstructs the name from the PIE root da:-: "flow, river", da:-nu: "any moving liquid, drops", da: navo "people living by the river, Skyth. nomadic people (in Rigveda water-demons, fem.Da:nu primordial goddess), in Greek Danaoi, Egypt. Danuna". It is also possible that the name Danaans is pre-Greek. A country Danaja with a city Mukana (propaply: Mycenea) is mentioned in inscriptions from Egypt from Amenophis III (1390-1352 BC), Thutmosis III (1437 BC).
What country is spoken of in the inscriptions of a country in Northern Africa from 1390-1352 BC ?

ANS: A country Danaja with a city Mukana (propaply: Mycenea) is mentioned in inscriptions from Egypt

QUES: The energy density per unit volume of both liquid hydrogen and compressed hydrogen gas at any practicable pressure is significantly less than that of traditional fuel sources, although the energy density per unit fuel mass is higher. Nevertheless, elemental hydrogen has been widely discussed in the context of energy, as a possible future carrier of energy on an economy-wide scale. For example, CO
2 sequestration followed by carbon capture and storage could be conducted at the point of H
2 production from fossil fuels. Hydrogen used in transportation would burn relatively cleanly, with some NOx emissions, but without carbon emissions. However, the infrastructure costs associated with full conversion to a hydrogen economy would be substantial. Fuel cells can convert hydrogen and oxygen directly to electricity more efficiently than internal combustion engines.
What form of hydrogen has been discussed as a ussage for fuel?

ANS: elemental

QUES: From mid-May to September 1989, Ukrainian Greek-Catholic hunger strikers staged protests on Moscow's Arbat to call attention to the plight of their Church. They were especially active during the July session of the World Council of Churches held in Moscow. The protest ended with the arrests of the group on September 18. On May 27, 1989, the founding conference of the Lviv regional Memorial Society was held. On June 18, 1989, an estimated 100,000 faithful participated in public religious services in Ivano-Frankivsk in western Ukraine, responding to Cardinal Myroslav Lubachivsky's call for an international day of prayer.
What were the hunger strikers hoping to draw attention to?

ANS:
plight of their Church.