Answer the following question given this paragraph: One example of a gap gene is the Kruppel gene, which regulates the activity of a number of other genes. Kruppel literally means "cripple" in German, named for the crippled appearance of mutant larva. Gap genes are defined by the effect of a mutation in that gene, and Kruppel is one such effect. Other gap genes are known as tailless and knirps (a "squirt or whippersnapper"). Gap genes encode transcription factors which directly effect the expression of additional genes involved in embryo segmentation, called the pair-rule genes . Pair-rule genes are expressed in alternating segments within the developing embryo. Pair-rule genes have very creative names, such as even-skipped, hairy, odd-skipped, odd-paired, sloppy paired and fushi tarazu , which is Japanese for "few segments. " See My favorite silly gene names at http://www. itsokaytobesmart. com/post/82318778810/funny-gene-names for a list of other interesting gene names. Q: Gap genes are defined by the effect of what in that gene? Choices: - infection - radiation - modification - mutation A:
mutation
(Question)
Answer the following question given this paragraph: For decades Pluto was a planet. But even then, scientists knew it was an unusual planet. The other outer planets are all gas giants. Pluto is small, icy and rocky. With a diameter of about 2400 kilometers, it has only about 1/5 the mass of Earth's Moon. The other planets orbit in a plane. Pluto's orbit is tilted. The shape of the orbit is like a long, narrow ellipse. Pluto's orbit is so elliptical that sometimes it is inside the orbit of Neptune. Q: Pluto's orbit is so elliptical that sometimes it is inside the orbit of which planet? Choices: - titan - Mars - Earth - neptune A:
(Answer)
neptune
Ques: Answer the following question given this paragraph: Landslides are the most dramatic, sudden, and dangerous types of mass wasting. Landslides are sudden falls of rock; by contrast, avalanches are sudden falls of snow. Q: What are the most dramatic, sudden, and dangerous types of mass wasting? Choices: - earthquakes - monsoons - volcanoes - landslides A:
Ans: landslides
(Q).
Answer the following question given this paragraph: Q: Two species that share what cannot coexist in a community? Choices: - color - mood - language - same niche A:
(A).
same niche
Ques:Answer the following question given this paragraph: Sulfur enters the ocean in runoff from land, from atmospheric fallout, and from underwater geothermal vents. Some ecosystems rely on chemoautotrophs using sulfur as a biological energy source. This sulfur then supports marine ecosystems in the form of sulfates. Human activities have played a major role in altering the balance of the global sulfur cycle. The burning of large quantities of fossil fuels, especially from coal, releases larger amounts of hydrogen sulfide gas into the atmosphere. As rain falls through this gas, it creates the phenomenon known as acid rain, which damages the natural environment by lowering the pH of lakes, thus killing many of the resident plants and animals. Acid rain is corrosive rain caused by rainwater falling to the ground through sulfur dioxide gas, turning it into weak sulfuric acid, which causes damage to aquatic ecosystems. Acid rain also affects the man-made environment through the chemical degradation of buildings. For example, many marble monuments, such as the Lincoln Memorial in Washington, DC, have suffered significant damage from acid rain over the years. These examples show the wide-ranging effects of human activities on our environment and the challenges that remain for our future. Q: Acid rain is corrosive rain caused by rainwater falling to the ground through which gas? Choices: - sulfide dioxide - carbon dioxide - essential dioxide - sulfur dioxide A:

Ans:sulfur dioxide
Answer the following question given this paragraph: Summary A minimum energy (activation energy, Ea) is required for a collision between molecules to result in a chemical reaction. Plots of potential energy for a system versus the reaction coordinate show an energy barrier that must be overcome for the reaction to occur. The arrangement of atoms at the highest point of this barrier is the activated complex, or transition state, of the reaction. At a given temperature, the higher the Ea, the slower the reaction. The fraction of orientations that result in a reaction is the steric factor. The frequency factor, steric factor, and activation energy are related to the rate constant in the Arrhenius equation: k = Ae - Ea / RT. A plot of the natural logarithm of k versus 1/T is a straight line with a slope of Ea/R. Saylor URL: http://www. saylor. org/books. Q: What term means the minimum energy required in order for a collision between molecules to result in a chemical reaction? Choices: - maximum energy - solar energy - depletion energy - activation energy A:
activation energy