Q: The process of the cytoplasm splitting apart and the cell pinching in two is known as what? Read this paragraph and choose the correct option from the provided answers: The cell wall grows toward the center of the cell. The cytoplasm splits apart, and the cell pinches in two. This is called cytokinesis . Choices: - mitosis - electrolysis - budding - cytokinesis A:
cytokinesis

(Question)
Q: The part of the ecosystem required by a particular species is endangered when human activity threatens loss of what? Read this paragraph and choose the correct option from the provided answers: Habitat Loss Humans rely on technology to modify their environment and replace certain functions that were once performed by the natural ecosystem. Other species cannot do this. Elimination of their habitatwhether it is a forest, coral reef, grassland, or flowing riverwill kill the individuals in the species. Remove the entire habitat within the range of a species and, unless they are one of the few species that do well in human-built environments, the species will become extinct. Human destruction of habitats (habitats generally refer to the part of the ecosystem required by a particular species) accelerated in the latter half of the twentieth century. Consider the exceptional biodiversity of Sumatra: it is home to one species of orangutan, a species of critically endangered elephant, and the Sumatran tiger, but half of Sumatra's forest is now gone. The neighboring island of Borneo, home to the other species of orangutan, has lost a similar area of forest. Forest loss continues in protected areas of Borneo. The orangutan in Borneo is listed as endangered by the International Union for Conservation of Nature (IUCN), but it is simply the most visible of thousands of species that will not survive the disappearance of the forests of Borneo. The forests are removed for timber and to plant palm oil plantations (Figure 21.8). Palm oil is used in many products including food products, cosmetics, and biodiesel in Europe. A 5-year estimate of global forest cover loss for the years from 2000 to 2005 was 3.1 percent. Much loss (2.4 percent) occurred in the humid tropics where forest loss is primarily from timber extraction. These losses certainly also represent the extinction of species unique to those areas. Choices: - primary producers - primary speciation - biodiversity - habitat A:
(Answer)
habitat

Ques: Q: Is the rate of population growth increasing or decreasing? Read this paragraph and choose the correct option from the provided answers: As the human population continues to grow, different factors limit population in different parts of the world. Space, clean air, clean water, and food to feed everyone are limiting in some locations. Worldwide though, human ingenuity has not placed a limit on the population. Not only does the population increase, the rate of population growth increases. Choices: - suggesting - Vanishing. - preventing - increasing A:
Ans: increasing

(Q).
Q: What is the term for plants that produce flowers and fruit? Read this paragraph and choose the correct option from the provided answers: Angiosperms are plants that produce flowers and fruit. Choices: - endosperms - spores - gymnosperms - angiosperms A:
(A).
angiosperms

Ques:Q: What type of symmetry do echinoderms show? Read this paragraph and choose the correct option from the provided answers: As mentioned earlier, echinoderms show radial symmetry. Other key echinoderm features include an internal skeleton and spines, as well as a few organs and organ systems. Although echinoderms look like they have a hard exterior, they do not have an external skeleton. Instead, a thin outer skin covers an internal skeleton made of tiny plates and spines. This provides rigid support. Some groups of echinoderms, such as sea urchins ( Figure below ), have spines that protect the organism. Sea cucumbers use these spines to help them move. Choices: - mirrored - lateral - parallel - radial A:

Ans:radial

Question: Q: Collagen fibers, elastic fibers, and reticular fibers comprise what type of tissue? Read this paragraph and choose the correct option from the provided answers: Connective Tissue Fibers and Ground Substance Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Collagen fiber is made from fibrous protein subunits linked together to form a long and straight fiber. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. These fibers hold connective tissues together, even during the movement of the body. Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that after being stretched or compressed, it will return to its original shape. Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column. Reticular fiber is also formed from the same protein subunits as collagen fibers; however, these fibers remain narrow and are arrayed in a branching network. They are found throughout the body, but are most abundant in the reticular tissue of soft organs, such as liver and spleen, where they anchor and provide structural support to the parenchyma (the functional cells, blood vessels, and nerves of the organ). All of these fiber types are embedded in ground substance. Secreted by fibroblasts, ground substance is made of polysaccharides, specifically hyaluronic acid, and proteins. These combine to form a proteoglycan with a protein core and. Choices: - nucleus tissue - intestine tissue - skin tissue - connective tissue A:
Answer:
connective tissue