Problem: The skeleton consists of very lightweight bones. They have large air-filled cavities (called pneumatic cavities) which connect with the respiratory system. The skull bones in adults are fused and do not show cranial sutures. The orbits are large and separated by a bony septum. The spine has cervical, thoracic, lumbar and caudal regions with the number of cervical (neck) vertebrae highly variable and especially flexible, but movement is reduced in the anterior thoracic vertebrae and absent in the later vertebrae. The last few are fused with the pelvis to form the synsacrum. The ribs are flattened and the sternum is keeled for the attachment of flight muscles except in the flightless bird orders. The forelimbs are modified into wings.
What does the skeleton consist of?
The answer is the following: very lightweight bones

Problem: The county was subject to significant boundary reform in 1974 that removed Liverpool and Manchester and most of their surrounding conurbations to form the metropolitan counties of Merseyside and Greater Manchester. The detached northern part of Lancashire in the Lake District, including the Furness Peninsula and Cartmel, was merged with Cumberland and Westmorland to form Cumbria. Lancashire lost 709 square miles of land to other counties, about two fifths of its original area, although it did gain some land from the West Riding of Yorkshire. Today the county borders Cumbria to the north, Greater Manchester and Merseyside to the south and North and West Yorkshire to the east; with a coastline on the Irish Sea to the west. The county palatine boundaries remain the same[clarification needed] with the Duke of Lancaster exercising sovereignty rights, including the appointment of lords lieutenant in Greater Manchester and Merseyside.
How many miles of land did Lancashire lose to other countries?
The answer is the following: 709

Problem: Advances in understanding genes and inheritance continued throughout the 20th century. Deoxyribonucleic acid (DNA) was shown to be the molecular repository of genetic information by experiments in the 1940s to 1950s. The structure of DNA was studied by Rosalind Franklin using X-ray crystallography, which led James D. Watson and Francis Crick to publish a model of the double-stranded DNA molecule whose paired nucleotide bases indicated a compelling hypothesis for the mechanism of genetic replication. Collectively, this body of research established the central dogma of molecular biology, which states that proteins are translated from RNA, which is transcribed from DNA. This dogma has since been shown to have exceptions, such as reverse transcription in retroviruses. The modern study of genetics at the level of DNA is known as molecular genetics.
What two scientists published a model of the double stranded DNA molecule?
The answer is the following: James D. Watson and Francis Crick

Problem:
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 a gene?
The answer is the following:
a locus (or region) of DNA that encodes a functional RNA or protein product