How Good Is Your Knowledge About Biology?

The windpipe is another name for the trachea. It is a tube-like structure that connects the throat to the lungs and allows air to pass in and out of the respiratory system. The trachea is lined with cilia and mucus-producing cells that help filter and moisten the air we breathe. It then branches into smaller tubes called bronchi, which further divide into bronchioles and eventually lead to the alveoli in the lungs, where oxygen is exchanged for carbon dioxide.

Mosquitoes carry the organism that causes malaria. Malaria is a disease caused by a parasite called Plasmodium, which is transmitted to humans through the bite of infected female Anopheles mosquitoes. These mosquitoes become infected when they bite a person who already has malaria, and then they can transmit the parasite to other people through subsequent bites. Therefore, mosquitoes are the primary carriers of the organism that causes malaria.

The kidneys are responsible for filtering blood and removing waste products and excess water from the body. They also help regulate salt and water levels by adjusting the amount of water and electrolytes that are reabsorbed or excreted in the urine. The liver is primarily involved in detoxification and metabolism, while the stomach is involved in digestion. The bladder is responsible for storing urine before it is eliminated from the body. Therefore, the correct answer is kidneys.

The Peregrine Falcon is a bird of prey because it is known for its hunting skills and feeding primarily on other birds. It has sharp talons and a hooked beak, which are characteristic features of birds of prey. Unlike the other options listed, such as the Blue Jay, American Crow, and Cardinal, which are not classified as birds of prey, the Peregrine Falcon is specifically adapted for hunting and capturing prey in flight.

The bubonic plague, also known as the Black Death, was caused by the bacterium Yersinia pestis, which was primarily transmitted by fleas that infested black rats. These rats were common in Europe during the Middle Ages and were mistakenly believed to be the source of the plague. The misconception led to the persecution and extermination of black rats, which unfortunately did not help in controlling the spread of the disease.

Penguins are warm-blooded animals because they can regulate their body temperature internally. Unlike cold-blooded animals like rattlesnakes, eastern box turtles, and alligators, penguins can maintain a constant body temperature regardless of the external environment. This ability allows them to survive in extremely cold conditions, such as their natural habitat in Antarctica.

The outer skeleton of organisms such as spiders and insects is called an exoskeleton. This rigid external covering provides support and protection for the organism's body. Unlike an endoskeleton, which is found inside the body, an exoskeleton is located on the outside. It is made of a tough material called chitin, which gives it strength and durability. The exoskeleton also serves as a attachment site for muscles, allowing the organism to move and perform various activities.

Grains is the largest food group because it includes a wide variety of foods such as rice, bread, pasta, and cereal. These foods are rich in carbohydrates, which are the body's main source of energy. Grains are an essential part of a balanced diet and should make up the largest portion of our daily food intake.

Cnidarians is the correct answer because they are a group of animals that have hollow bodies and stinging cells. Cnidarians include organisms like jellyfish, sea anemones, and coral, all of which have specialized cells called cnidocytes that contain stinging structures called nematocysts. These stinging cells are used for defense and capturing prey. The hollow body plan of cnidarians allows for efficient movement and digestion.

Respiration is the process that converts sugars into energy and involves breathing oxygen. During respiration, glucose molecules are broken down in the presence of oxygen to produce ATP, which is the main source of energy for cells. This process occurs in the mitochondria of cells and is essential for the survival of living organisms. The other options, such as the carbon cycle, transpiration, and photosynthesis, are not directly involved in the conversion of sugars into energy through oxygen consumption.

A flexor muscle is responsible for bending a joint in the body. It contracts to decrease the angle between two bones, allowing the joint to flex or bend. Flexor muscles are found throughout the body and are essential for various movements, such as bending the elbow or knee. They work in opposition to extensor muscles, which are responsible for straightening or extending a joint.

In organisms such as earthworms, organs develop in a fluid-filled cavity called the coelom. The coelom provides a protective environment for the organs and allows for their proper development and functioning. It also helps in maintaining the shape and structure of the organism.

Fleas are known for their ability to jump up to 200 times their own body length, making them the insect that fits the given description. They are also known to be pests on cats and dogs, as they infest their fur and feed on their blood. Fleas are small, wingless insects that have specialized hind legs for jumping, allowing them to easily move between hosts and reproduce rapidly. Their presence can cause itching, discomfort, and even transmit diseases to pets and humans, making them a common nuisance.

A lamprey is an example of a jawless fish. Unlike sharks, blue gill, and piranhas, lampreys do not have jaws. They have a round, sucker-like mouth that they use to attach themselves to other fish and feed on their blood and tissues. Lampreys are primitive fish that have been around for millions of years and are known for their unique feeding behavior.

The correct answer is "Mantle." The mantle is a fold of tissue that surrounds a mollusk's soft body. It functions as a protective covering and also plays a role in the secretion of the mollusk's shell.

Coral is the correct answer because it is a type of cnidarian that forms underwater reefs. Coral reefs are created by the accumulation of the calcium carbonate skeletons of coral polyps over time. These reefs provide habitats for a diverse range of marine life and are important ecosystems in the ocean. Sand dollars, sea urchins, and sea squirts are not types of cnidarians that form reefs.

A shark's skeleton is made of cartilage. Unlike most other fish, sharks do not have bones. Instead, their skeleton is made up of a tough, flexible, and lightweight material called cartilage. This allows sharks to be agile swimmers and helps them navigate through the water with ease. Additionally, cartilage provides support and protection to the shark's vital organs, making it a suitable material for their skeletal structure.

Blood is produced in the bones. The bone marrow, found inside the bones, is responsible for the production of blood cells. Red blood cells, white blood cells, and platelets are all produced in the bone marrow. These cells are essential for various functions in the body, such as oxygen transport, immune response, and blood clotting. Therefore, the correct answer is bones.

Segmented worms have bodies that are divided into rings, which is a characteristic feature of this group of organisms. They also possess a coelom, which is a fluid-filled body cavity that is completely lined by mesoderm. This coelom provides support and allows for the movement of internal organs. Therefore, the correct answer is Segmented Worms.

The gray fox is the only canine that can climb trees. Unlike other canines, such as domestic dogs, red foxes, and wolves, the gray fox has semi-retractable claws that allow it to grip onto tree trunks and branches. This unique adaptation enables the gray fox to climb trees to escape predators or to search for food.