Q: What are biochemical compounds that living things use to store energy and make cell membranes? Read this paragraph and choose the correct option from the provided answers: Lipids are biochemical compounds that living things use to store energy and make cell membranes. Types of lipids include fats, oils, and phospholipids. Choices: - carbohydrates - proteins - nucleic acid - lipids A:
lipids

Q: What kind of agriculture destroyed about 10% of madagascar's native plants? Read this paragraph and choose the correct option from the provided answers: Another example of species loss due to habitat destruction happened on Madagascar's central highland plateau. From 1970 to 2000, slash-and-burn agriculture destroyed about 10% of the country's total native plants. The area turned into a wasteland. Soil from erosion entered the waterways. Much of the river ecosystems of several large rivers were also destroyed. Several fish species are almost extinct. Also, some coral reef formations in the Indian Ocean are completely lost. Choices: - hybridization - crop rotation - fertilizer use - slash-and-burn A:
slash-and-burn

Q: An allele is an alternative form of what structure? Read this paragraph and choose the correct option from the provided answers: You have learned that an allele is an alternative form of a gene. Most, if not all genes have alternative forms causing the resulting protein to function slightly differently. But are there alleles that cause proteins to function dramatically differently or not function at all? A mutation is a change in the DNA or RNA sequence, and many mutations result in new alleles. Some mutations have no effect on the protein, whereas others are either beneficial or harmful. In fact, evolution could not take place without the genetic variation that results from beneficial mutations. In humans, harmful mutations can result in genetic diseases. There are also chromosomal mutations, large changes with dramatic effects. See Mutations are changes in genetic information at http://www. dnaftb. org/27/animation. html for a description of the early work on mutations. Choices: - amino acid - enzyme - protein - gene A:
gene