Grasshopper Laboratory Practical (Ab) (Cb)

The eastern lubber grasshopper has six legs. This is the correct answer because grasshoppers, including the eastern lubber grasshopper, are insects and insects typically have six legs.

Grasshoppers are found in the kingdom Animalia because they are multicellular organisms, possess specialized tissues and organs, and are heterotrophic, meaning they obtain their nutrients by consuming other organisms. The kingdom Animalia includes a wide range of organisms that are characterized by these features, including insects like grasshoppers.

Grasshoppers are classified under the phylum Arthropoda. Arthropoda is the largest phylum in the animal kingdom, which includes insects, spiders, crustaceans, and other related organisms. Grasshoppers possess the characteristic features of arthropods, such as jointed legs, a segmented body, and an exoskeleton. This classification is based on their morphological and anatomical similarities with other members of the phylum Arthropoda.

The statement is true because the clypen, lacina, and stipes are indeed the components that make up the mouth parts of the eastern lubber grasshopper. These mouth parts are important for the grasshopper's feeding and chewing activities.

Grasshoppers belong to the class Insecta because they are insects. Insecta is a class that includes a diverse group of organisms characterized by having six legs, a three-part body (head, thorax, and abdomen), and usually one or two pairs of wings. Grasshoppers exhibit all these characteristics, making them a part of the class Insecta.

The eastern lubber grasshopper has three main body sections: the abdomen, head, and thorax. The abdomen is the posterior part of the body, housing the digestive and reproductive organs. The head contains the sensory organs, including the eyes and mouthparts. The thorax is the middle section of the body, which contains the legs and wings used for locomotion.

Grasshoppers carry out respiration through small lateral openings on their body called spiracles. These spiracles are connected to a network of tubes called tracheae, which deliver oxygen directly to the cells. This adaptation allows grasshoppers to efficiently exchange gases with their environment and obtain the oxygen they need for respiration. The other options, coxa, nerve cord, and lungs, are not involved in the respiratory system of grasshoppers.

The question asks about the structure that does not belong to the mouth parts of the eastern lubber grasshopper. The structures mentioned are clypen, galea, ligula, intestine, mandible, and mentum. The clypen, galea, ligula, mandible, and mentum are all mouth parts that are commonly found in grasshoppers. However, the intestine is not a mouth part but rather a part of the digestive system. Therefore, the correct answer is intestine.

When a grasshopper is being handled, they spit a brown liquid which is known by many as "tobacco juice". This liquid is produced by the grasshopper as a defense mechanism. The brown color of the liquid is likely due to the presence of certain chemicals or pigments in the grasshopper's body.

The eastern lubber grasshopper uses only 2 legs for jumping. This is a characteristic of grasshoppers, as they have specialized hind legs that are adapted for jumping. The other legs are primarily used for walking and gripping surfaces. Therefore, the correct answer is 2.

Eastern lubber grasshoppers have one pair of antennae.

The pulvillus is a structure found on the hind leg tibia of the eastern lubber grasshopper. This structure is important for the grasshopper's ability to grip surfaces and navigate its environment. The compound eyes, labium, and mandible are all different structures found in grasshoppers, but they do not have the pulvillus.

The structure that does not belong to the reproductive system of the eastern lubber grasshopper is the Maxillary Pulp. The other structures listed, such as the Cercus, Epiproct, Ovary, and Ovipositor, are all directly involved in the reproductive processes of the grasshopper. The Maxillary Pulp, on the other hand, is not a part of the reproductive system but rather a structure found in the mouthparts of insects. It is responsible for aiding in the ingestion and digestion of food.

Grasshoppers in the Order "Orthoptera" have two types of wings: flight wings and protective wings. Flight wings allow grasshoppers to fly and are necessary for their mobility and dispersal. Protective wings, also known as tegmina, are tough and leathery and serve to protect the delicate flight wings when they are not in use. These protective wings provide camouflage and help to shield the grasshopper's body from predators and environmental elements.

The correct answer is Prothorax, Mesothorax, Metathorax. The explanation is that the question is asking for the segments of the eastern lubber grasshopper's thorax from superior to inferior direction. The superior direction refers to the top or upper part of the body, while the inferior direction refers to the bottom or lower part of the body. Therefore, the correct order is Prothorax (superior), Mesothorax (middle), and Metathorax (inferior).

The eastern lubber grasshopper has two pairs of legs that are used for walking. Each pair of legs is located on the thorax of the grasshopper and is used for locomotion. These legs are adapted for walking and enable the grasshopper to move around its environment.

The statement "Grasshoppers belong to the family Acrididae" is true. Acrididae is a family of insects that includes grasshoppers, locusts, and their close relatives. These insects are characterized by their long hind legs adapted for jumping and their ability to produce sound by rubbing their wings or legs together. Grasshoppers are known for their herbivorous diet and are found in various habitats worldwide. Therefore, it is correct to say that grasshoppers belong to the family Acrididae.

The given options are characteristics of grasshoppers. The two main groups of grasshoppers are categorized based on their horn length, with one group having long horns (long-horned) and the other group having short horns (short-horned). The options "Long-horned" and "Short-horned" correctly represent these two main groups, making them the correct answers.

The eastern lubber grasshopper does not belong to the family "Orthoptera".

The statement is false because the ocellus is not a compound eye found on the eastern lubber grasshopper. The ocellus is actually a simple eye found in some insects, including grasshoppers, which is used to detect light and dark. Compound eyes, on the other hand, are made up of multiple individual lenses and are found in many insects, including grasshoppers. Therefore, the ocellus is not a compound eye and the statement is false.

Eastern lubber grasshoppers use the gastric caeca to break down food using enzymes. Gastric caeca are specialized pouches located in the digestive system of insects, including grasshoppers. They secrete enzymes that help in the digestion and breakdown of food. These enzymes break down complex molecules into simpler forms that can be absorbed by the grasshopper's body for nutrition and energy. The gastric caeca play a crucial role in the grasshopper's digestive process.

The learning materials have presented a total of 12 different mouth parts.

The correct answer is Romalea guttata. This is the genus species name for the eastern lubber grasshopper. The other options, Acrididae guttata and Arthropoda guttata, are incorrect as they do not provide the specific genus and species names for the grasshopper. Romonula guttata is also incorrect as it is not the accepted scientific name for this species.

Eastern lubber grasshoppers do not have excretory organs called malpighian segments. Malpighian segments are actually found in insects such as beetles, flies, and mosquitoes. Eastern lubber grasshoppers have a different excretory system known as the tubular excretory system. Therefore, the correct answer is False.

Scientists who study insects are called entomologists. They specialize in the scientific study of insects, including their behavior, physiology, ecology, and taxonomy. Entomologists play a crucial role in understanding the diversity and importance of insects in various ecosystems. They conduct research, collect and identify insect specimens, and contribute to our knowledge of insect biology and their impact on human health, agriculture, and the environment.