Answer the following question given this paragraph: Wings and feathers are two adaptations for flight that evolved in birds. Both are clearly displayed in the flying gull in Figure below . Wings evolved from the front limbs of a four-legged ancestor. The wings are controlled by large flight muscles in the chest. Feathers also help birds fly. They provide air resistance and lift. In addition, they provide insulation and serve other roles. Q: Birds adapted wings and weathers for flight during what process? Choices: - migration - variation - emergence - evolution A:
evolution
Answer the following question given this paragraph: Each organism has the ability to survive in a specific environment. Dry desert environments are difficult to live in. Desert plants have special stems and leaves to conserve water. Animals have other ways to live in the desert. The Namib Desert receives only 1.5 inches of rainfall each year. The Namib Desert beetle lives there. How do the beetles get enough water to survive? Early morning fog deposits water droplets. The droplets collect on a beetle's wings and back. The beetle tilts its rear end up. When the droplet is heavy enough, it slides forward. It lands in the beetle's mouth. There are many other environments that need unique approaches for survival ( Figure below ). Q: Desert plants have special stems and leaves to conserve what? Choices: - food - air - habitat - water A:
water
Q: Answer the following question given this paragraph: The human body produces many enzymes that help digest food. Here are just two examples. Q: What does the human body produce to help digest food? Choices: - vitamins - carbohydrates - fiber - enzymes A:
A: enzymes
Question: Answer the following question given this paragraph: Lastly, keep in mind the small size of bacteria. Together, all the bacteria in your gut may weight just about 2 pounds. Q: How much can the bacteria in your gut weigh? Choices: - 2.2 pounds - 2.15 pounds - 2 kilograms - 2 pounds A:
Answer: 2 pounds
*Question*
Answer the following question given this paragraph: Mercury is the smallest planet and the closest to the Sun. It has an extremely thin atmosphere so surface temperatures range from very hot to very cold. Like the Moon, it is covered with craters. Q: What is the smallest planet in our solar system? Choices: - Earth - Jupiter - Mars - mercury A:
**Answer**
mercury
(Question)
Answer the following question given this paragraph: Consider the example of water forming from hydrogen and oxygen. Both hydrogen and oxygen gases exist as diatomic ("two-atom") molecules. These molecules are the reactants in the reaction. The Figure below shows that bonds must break to separate the atoms in the hydrogen and oxygen molecules. Then new bonds must form between hydrogen and oxygen atoms to form water molecules. The water molecules are the products of the reaction. Q: What is the name for a molecule with two atoms? Choices: - hydrostatic - ionized - covalent - diatomic A:
(Answer)
diatomic