Ques: Q: Chelicerata are know for their first pair of appendages, also know as what? Read this paragraph and choose the correct option from the provided answers: Subphylum Chelicerata includes animals such as spiders, scorpions, horseshoe crabs, and sea spiders. This subphylum is [4] predominantly terrestrial, although some marine species also exist. An estimated 103,000 described species are included in subphylum Chelicerata. The body of chelicerates may be divided into two parts and a distinct "head" is not always discernible. The phylum derives its name from the first pair of appendages: the chelicerae (Figure 15.23a), which are specialized mouthparts. The chelicerae are mostly used for feeding, but in spiders, they are typically modified to inject venom into their prey (Figure 15.23b). As in other members of Arthropoda, chelicerates also utilize an open circulatory system, with a tube-like heart that pumps blood into the large hemocoel that bathes the internal organs. Aquatic chelicerates utilize gill respiration, whereas terrestrial species use either tracheae or book lungs for gaseous exchange. Choices: - ambers - chelicides - maxillae - chelicerae A:
Ans: chelicerae

Ques: Q: What is the gel-like material between the cell membrane and the nucleus called? Read this paragraph and choose the correct option from the provided answers: Cytoplasm is one component of cells that is common to all cells. Cytoplasm is the gel-like material between the cell membrane and the nucleus. The cytoplasm plays an important role in a cell, serving as a "jelly" in which organelles are suspended and held together by the cell membrane. Though prokaryotic cells do not have organelles (though they do have ribosomes), they still have cytoplasm. It is within the cytoplasm that most cellular activities occur, including the many metabolic pathways that occur within organelles, such as photosynthesis and aerobic respiration. Choices: - ribosome - mucus - vacuole - cytoplasm A:
Ans: cytoplasm

Ques: Q: What involuntary muscle is found only in the heart? Read this paragraph and choose the correct option from the provided answers: Cardiac muscle is also an involuntary muscle, found only in the heart. The cardiac muscle fibers all contract together, generating enough force to push blood throughout the body. What would happen if this muscle was under conscious or voluntary control?. Choices: - physiological muscle - respiratory muscle - digestive muscle - cardiac muscle A:
Ans: cardiac muscle

Ques: Q: Solids can be divided into amorphous solids and which other group? Read this paragraph and choose the correct option from the provided answers: Solids can be divided into amorphous solids and crystalline solids. Choices: - morphous solids - distinct solids - acrystalline solids - crystalline solids A:
Ans:
crystalline solids