Problem: Please answer a question about the following article about Digestion:
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and chemical digestion. The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use.
In some organisms, how are these molecules absorbed?
A: these smaller substances are absorbed through the small intestine into the blood stream
Problem: Please answer a question about the following article about Russian language:
During the Soviet period, the policy toward the languages of the various other ethnic groups fluctuated in practice. Though each of the constituent republics had its own official language, the unifying role and superior status was reserved for Russian, although it was declared the official language only in 1990. Following the break-up of the USSR in 1991, several of the newly independent states have encouraged their native languages, which has partly reversed the privileged status of Russian, though its role as the language of post-Soviet national discourse throughout the region has continued.
What unofficial status did Russian have in the USSR before 1990?
A: the unifying role and superior status
Problem: Please answer a question about the following article about Gene:

A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity.:Glossary The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the geneenvironment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.
What is the basis of inheritance of phenotypic traits?
A: The transmission of genes to an organism's offspring
Problem: Please answer a question about the following article about Mosaic:
The Church of the Holy Apostles in Thessaloniki was built in 131014. Although some vandal systematically removed the gold tesserae of the background it can be seen that the Pantokrator and the prophets in the dome follow the traditional Byzantine pattern. Many details are similar to the Pammakaristos mosaics so it is supposed that the same team of mosaicists worked in both buildings. Another building with a related mosaic decoration is the Theotokos Paregoritissa Church in Arta. The church was established by the Despot of Epirus in 129496. In the dome is the traditional stern Pantokrator, with prophets and cherubim below.
Who removed the gold tesserae in the background of the mosaic at the Church of the Holy Apostles?
A:
some vandal