Q: Sounds, chemicals, and visual cues are examples of what between animals? Read this paragraph and choose the correct option from the provided answers: For individuals to cooperate, they need to communicate . Animals can communicate with sounds, chemicals, or visual cues. For example, to communicate with sounds, birds sing and frogs croak. Both may be communicating that they are good mates. Ants communicate with chemicals called pheromones . For example, they use the chemicals to mark trails to food sources so other ants can find them. Male dogs use pheromones in urine to mark their territory. They are "telling" other dogs to stay out of their yard. You can see several examples of visual communication in Figure below . Choices: - migration - circulation - procreation - communication A:
communication

Q: Tendon, cartilage, and bone are examples of what type of tissue that supports and binds other tissues of the body? Read this paragraph and choose the correct option from the provided answers: Connective tissue is made up of many different types of cells that are all involved in supporting and binding other tissues of the body. Examples include tendon, cartilage, and bone. Blood is also classified as a specialized connective tissue. Choices: - muscular tissue - untreated tissue - repetitive tissue - connective tissue A:
connective tissue

Q: Q: What is the method of reproduction for echinoderms? Read this paragraph and choose the correct option from the provided answers: Echinoderms generally reproduce by external fertilization; regeneration is fairly common among echinoderms. Choices: - pollination - internal fertilization - fragmentation - external fertilization A:
A: external fertilization

Question: Q: What is the lipid-rich sheath that surrounds the axon and facilitates the transmission of electrical signals along the axon? Read this paragraph and choose the correct option from the provided answers: Myelin The insulation for axons in the nervous system is provided by glial cells, oligodendrocytes in the CNS, and Schwann cells in the PNS. Whereas the manner in which either cell is associated with the axon segment, or segments, that it insulates is different, the means of myelinating an axon segment is mostly the same in the two situations. Myelin is a lipid-rich sheath that surrounds the axon and by doing so creates a myelin sheath that facilitates the transmission of electrical signals along the axon. The lipids are essentially the phospholipids of the glial cell membrane. Myelin, however, is more than just the membrane of the glial cell. It also includes important proteins that are integral to that membrane. Some of the proteins help to hold the layers of the glial cell membrane closely together. The appearance of the myelin sheath can be thought of as similar to the pastry wrapped around a hot dog for "pigs in a blanket" or a similar food. The glial cell is wrapped around the axon several times with little to no cytoplasm between the glial cell layers. For oligodendrocytes, the rest of the cell is separate from the myelin sheath as a cell process extends back toward the cell body. A few other processes provide the same insulation for other axon segments in the area. For Schwann cells, the outermost layer of the cell membrane contains cytoplasm and the nucleus of the cell as a bulge on one side of the myelin sheath. During development, the glial cell is loosely or incompletely wrapped around the axon (Figure 12.13a). The edges of this loose enclosure extend toward each other, and one end tucks under the other. The inner edge wraps around the axon, creating several layers, and the other edge closes around the outside so that the axon is completely enclosed. Choices: - axon sheath - neural sheath - receptors sheath - myelin sheath A:
Answer: myelin sheath

*Question*
Q: What are flightless birds that are strong swimmers and spend much of their time in the water? Read this paragraph and choose the correct option from the provided answers: Penguins are flightless birds that are strong swimmers and spend much of their time in the water. Choices: - Emus - Ostriches - Cassowaries - penguins A:
**Answer**
penguins

(Question)
Q: What is an alloy of both tin and copper? Read this paragraph and choose the correct option from the provided answers: Archaeological evidence suggests that people have been using tin for at least 5500 years. Tin is used to form many useful alloys (mixtures of two or more metals). Bronze is an alloy of tin and copper, while solder is an alloy of tin and lead. Choices: - Cobalt - silver - Aluminium - bronze A:
(Answer)
bronze