1.
What is the characteristic organ on the throat of camels called?
Correct Answer
A. Dulla
Explanation
The characteristic organ on the throat of camels is called the "dulla".
2.
What is the average height of a fully grown camel?
Correct Answer
D. 1.85m
Explanation
The average height of a fully grown camel is 1.85m.
3.
What is the shape of normal red blood cells in camels?
Correct Answer
B. Oval shapeÂ
Explanation
The normal shape of red blood cells in camels is oval. This shape allows the cells to flow easily through the blood vessels and adapt to the camel's unique physiological needs. The oval shape also increases the surface area of the cell, allowing for efficient oxygen and carbon dioxide exchange.
4.
What is the pad of tissues over the sternum of camels called?
Correct Answer
A. PedestalÂ
Explanation
The pad of tissues over the sternum of camels is called a pedestal. This pad serves as a protective cushion for the camel's chest while it is kneeling or lying down. It also helps distribute the weight of the camel's body when it is carrying heavy loads. The pedestal is a unique adaptation of camels that allows them to survive and thrive in their desert environments.
5.
What is the ratio of the cortex to medulla in the kidney of camels?
Correct Answer
A. 1:4
Explanation
The ratio of the cortex to medulla in the kidney of camels is 1:4. This means that for every 1 part of cortex, there are 4 parts of medulla in the camel's kidney.
6.
What is the scientific name of the earliest known camel?
Correct Answer
A. Protylopus
Explanation
Protylopus is the correct answer because it is the scientific name of the earliest known camel. It is an extinct genus of camelid that lived during the Eocene epoch, approximately 45-34 million years ago. Protylopus is considered a transitional form between the ancestral camelids and the modern camels, and its fossils have been found in North America.
7.
Which of these is regarded as the direct ancestors of modern camels?
Correct Answer
D. Procamelus
Explanation
Procamelus is regarded as the direct ancestor of modern camels. Procamelus was a genus of camel that lived during the Miocene period. Fossil evidence shows that Procamelus had similar physical characteristics to modern camels, such as long legs and a hump on its back. This suggests that Procamelus was an early evolutionary ancestor of modern camels and played a significant role in the development of their unique traits and adaptations.
8.
Which of these camel varieties is native to North America?
Correct Answer
C. Paracamelus
Explanation
Paracamelus is the correct answer because it is the only camel variety listed that is native to North America. Camelops Hastemus is an extinct species of camel that lived in North America, but it is not native to the continent. Procamelus is another extinct camel species, but it is native to Asia. Bering Camel is not a recognized camel variety and is not native to North America. Therefore, Paracamelus is the only option that fits the criteria of being native to North America.
9.
Which of these is not made from camel hairs?
Correct Answer
B. Yacht Anchors
Explanation
Yacht anchors are typically made from heavy metals such as steel or iron, not camel hairs. Tents, clothing, and bedding, on the other hand, can be made from camel hairs, specifically from the fur of the Bactrian camel, which is known for its soft and insulating properties.
10.
Which of these countries is home to the majority of feral camels in the world?
Correct Answer
D. Australia
Explanation
Australia is home to the majority of feral camels in the world. This is because Australia has a large, arid desert region known as the Australian Outback, which provides a suitable habitat for camels to thrive in the wild. The feral camel population in Australia has grown significantly since the introduction of camels in the 19th century for transportation and exploration purposes. Today, feral camels are considered a pest in Australia and efforts are being made to manage and control their population.