Biology: A Trivia Quiz On Mammals

Cats have sensitive whiskers. Whiskers are long, thick hairs that are located on either side of a cat's nose. They are highly sensitive and help cats navigate their surroundings, detect objects, and determine if they can fit through small spaces. Whiskers are an important sensory tool for cats, providing them with information about their environment and helping them to move around safely.

The tusks of elephants are modified incisors. Incisors are the front teeth in mammals that are typically used for cutting and biting. In the case of elephants, their incisors grow into long, curved tusks. These tusks are used for various purposes such as digging, lifting objects, stripping bark, and even for defense and offense.

The epidermis of mammals contains hair, bristle, and quills. Hair is a characteristic feature of mammals that provides insulation, protection, and sensory perception. Bristles are stiff hairs that serve various functions, such as aiding in balance or detecting prey. Quills are specialized hairs found in certain mammals, like porcupines, that serve as a defense mechanism by detaching easily and embedding into predators.

The correct answer is "dog, cat, crocodile, lion, tiger". This group contains a non-mammalian animal, which is the crocodile. Dogs, cats, lions, and tigers are all mammals, but crocodiles are reptiles.

The kidneys play a crucial role in maintaining the chemical composition of blood. They filter out waste products, excess water, and electrolytes from the bloodstream, ensuring that the levels of these substances remain within a normal range. Additionally, the kidneys help regulate the balance of acids and bases in the blood, which is essential for maintaining proper pH levels. Through their filtration and regulatory functions, the kidneys help to maintain the overall chemical balance in the body, making them the master chemists of our body.

Deer is the correct answer because it is a ruminant animal that possesses a four-chambered stomach. The four chambers of the deer's stomach allow for a more efficient digestion process, as they enable the deer to regurgitate and re-chew their food multiple times, aiding in the breakdown of tough plant material. This adaptation is necessary for herbivorous animals like deer to extract as many nutrients as possible from their diet.

The normal body temperature of a man is typically between 98.4 and 98.6 degrees Fahrenheit. This range is considered to be the average body temperature for a healthy adult male.

The mitral valve is found between the left auricle and left ventricle. This valve ensures that blood flows in one direction from the left atrium to the left ventricle, preventing any backflow. It consists of two flaps, or leaflets, that open and close synchronously with the heartbeat, allowing blood to pass through when the ventricle contracts and closing to prevent regurgitation when the ventricle relaxes. The correct answer, "Left auricle and left ventricle," accurately identifies the location of the mitral valve in the heart.