Q: What are long living plasma cells called? Read this paragraph and choose the correct option from the provided answers: Most plasma cells live for just a few days, but some of them live much longer. They may even survive for the lifetime of the individual. Long-living plasma cells are called memory cells. They retain a "memory" of a specific pathogen long after an infection is over. They help launch a rapid response against the pathogen if it invades the body again in the future. Choices: - device cells - context cells - brain Cells - memory cells A:
memory cells

Q: What is the critical factor for the survival of segmented worms? Read this paragraph and choose the correct option from the provided answers: Phylum Annelida Phylum Annelida includes segmented worms. These animals are found in marine, terrestrial, and freshwater habitats, but a presence of water or humidity is a critical factor for their survival, especially in terrestrial habitats. The name of the phylum is derived from the Latin word annellus, which means a small ring. Animals in this phylum show parasitic and commensal symbioses with other species in their habitat. Approximately 16,500 species have been described in phylum Annelida. The phylum includes earthworms, polychaete worms, and leeches. Annelids show protostomic development in embryonic stages and are often called "segmented worms" due to their key characteristic of metamerism, or true segmentation. Morphology Annelids display bilateral symmetry and are worm-like in overall morphology. Annelids have a segmented body plan wherein the internal and external morphological features are repeated in each body segment. Metamerism allows animals to become bigger by adding "compartments" while making their movement more efficient. This metamerism is thought to arise from identical teloblast cells in the embryonic stage, which give rise to identical mesodermal structures. The overall body can be divided into head, body, and pygidium (or tail). The clitellum is a reproductive structure that generates mucus that aids in sperm transfer and gives rise to a cocoon within which fertilization occurs; it appears as a fused band in the anterior third of the animal (Figure 28.28). Choices: - sunlight and water - humidity and sunlight - sunlight and warmth - water and humidity A:
water and humidity

Q: Q: What term is used to describe the amount of space occupied by a sample of matter? Read this paragraph and choose the correct option from the provided answers: Volume is the amount of space occupied by a sample of matter. Choices: - liquid - growth - mass - volume A:
A: volume

Question: Q: What can all living things sense and respond to in their environment? Read this paragraph and choose the correct option from the provided answers: All living things can sense and respond to stimuli in their environment. Stimuli might include temperature, light, or gravity. Choices: - sunlight - warmth - wind - stimuli A:
Answer: stimuli

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Q: Under a microscope, salt crystals are what shape? Read this paragraph and choose the correct option from the provided answers: Under a microscope, salt crystals are cubes. Choices: - triangles - circles - squares - cubes A:
**Answer**
cubes

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Q: Polyester fabric's resistance to wrinkling comes from the cross-linking of what? Read this paragraph and choose the correct option from the provided answers: PET is used in tires, photographic film, food packaging, and clothing. Polyester fabric is used in permanent-press clothing. Its resistance to wrinkling comes from the cross-linking of the polymer strands. Choices: - algae strands - velocity strands - wool strands - polymer strands A:
**Answer**
polymer strands