Answer the following question given this paragraph: Besides water, most of the compounds in living things are biochemical compounds. A biochemical compound is a carbon-based compound that is found in living organisms. Carbon is an element that has a tremendous ability to form large compounds. Each atom of carbon can form four chemical bonds with other atoms. A chemical bond is the sharing of electrons between atoms. Bonds hold the atoms together in chemical compounds. A carbon atom can form bonds with other carbon atoms or with atoms of other elements. Q: What element is a biochemical compound based on? Choices: - hydrogen - nitrogen - oxygen - carbon A:
carbon
(Question)
Answer the following question given this paragraph: Gene cloning is the process of isolating and making copies of a gene. This is useful for many purposes. For example, gene cloning might be used to isolate and make copies of a normal gene for gene therapy. Gene cloning involves four steps: isolation, ligation, transformation, and selection. You can watch an interactive animation about gene cloning at this link: http://www. teachersdomain. org/asset/biot09_int_geneclone/ . Q: What is the process of isolating a specific gene and then making a copy of it for use in gene therapy? Choices: - attribute cloning - gene treatment - gene copying - gene cloning A:
(Answer)
gene cloning
Ques: Answer the following question given this paragraph: Plants obtain food in two different ways. Autotrophic plants can make their own food from inorganic raw materials, such as carbon dioxide and water, through photosynthesis in the presence of sunlight. Green plants are included in this group. Some plants, however, are heterotrophic: they are totally parasitic and lacking in chlorophyll. These plants, referred to as holo-parasitic plants, are unable to synthesize organic carbon and draw all of their nutrients from the host plant. Plants may also enlist the help of microbial partners in nutrient acquisition. Particular species of bacteria and fungi have evolved along with certain plants to create a mutualistic symbiotic relationship with roots. This improves the nutrition of both the plant and the microbe. The formation of nodules in legume plants and mycorrhization can be considered among the nutritional adaptations of plants. However, these are not the only type of adaptations that we may find; many plants have other adaptations that allow them to thrive under specific conditions. Q: The group of plants that can make their own food from inorganic raw materials in the presence of sunlight are referred to as what? Choices: - symbiotic - autosynonomys - heterotrophic - autotrophic A:
Ans: autotrophic
(Q).
Answer the following question given this paragraph: However, out of all this secrecy came several contributions to modern-day chemistry. Early acids and bases were discovered. Glassware for running chemical reactions was developed. Alchemy helped improve the study of metallurgy and the extraction of metals from ores. More systematic approaches to research were being developed, although the idea of orderly scientific experimentation had not become well-established yet. But the groundwork was laid to the development of chemistry as a foundational science. Q: Alchemy helped improve the study of metallurgy and the extraction of metals from what? Choices: - air - water - wood - ores A:
(A).
ores
Ques:Answer the following question given this paragraph: In normal faults , the hanging wall drops down relative to the footwall. Normal faults are caused by tension that pulls the crust apart. This causes the hanging wall to slide down. Normal faults can build huge mountain ranges in regions experiencing tension ( Figure below ). Q: What makes up most of the inside of a plant? Choices: - star tissue - animal tissue - mitochondria - ground tissue A:

Ans:ground tissue
Ques: Answer the following question given this paragraph: Q: Which part of the axon has a higher membrane potential? Choices: - muscular hillock - biofilm hillock - canals hillock - axon hillock A:
Ans:
axon hillock