Answer the following question given this paragraph: Moving water has energy ( Figure above ). That energy is used to make electricity. Hydroelectric power harnesses the energy of water moving down a stream. Hydropower is the most widely used form of renewable energy in the world. This abundant energy source provides almost one fifth of the world's electricity. The energy of waves and tides can also be used to produce water power. At this time, wave and tidal power are rare. Q: Hydroelectric power harnesses the energy of what? Choices: - weather - heat - air - water A:
water
(Question)
Answer the following question given this paragraph: User:DrU/Wikipedia. Strawberry plants have horizontal stems called stolons that can form new plants. . Public Domain. Q: The horizontal stems on strawberry plants are called what? Choices: - buds - glands - nodules - stolons A:
(Answer)
stolons
Ques: Answer the following question given this paragraph: The earliest placental mammals may have evolved about 110 million years ago. The ancestor of placental mammals may be the extinct genus Eomaia . Fossils of Eomaia have been found in what is now China. It was only about 10 centimeters (4 inches) long. It was a tree climber and probably ate insects and worms. Eomaia had several traits of placental mammals. Figure below shows how Eomaia may have looked. Q: What may be the ancestor of placental mammals? Choices: - fungi - spirogyra - amphibians - eomaia A:
Ans: eomaia
(Q).
Answer the following question given this paragraph: Skeletons made of cartilage rather than bone. Cartilage is supportive tissue that does not have as much calcium as bones, which makes bones rigid. Cartilage is softer and more flexible than bone. Q: What does cartilage lack compared to bones, making it softer and less rigid? Choices: - potassium - magnesium - protein - calcium A:
(A).
calcium
Ques:Answer the following question given this paragraph: Vertebrates reproduce sexually, and almost all of them have separate male and female sexes. Generally, aquatic species have external fertilization, whereas terrestrial species have internal fertilization. Can you think of a reason why aquatic and terrestrial vertebrates differ in this way?. Q: In which way do vertebrates reproduce? Choices: - bisexually - unisexually - asexually - sexually A:

Ans:sexually
Question: Answer the following question given this paragraph: Capillaries are the smallest type of blood vessels. They connect very small arteries and veins. The exchange of gases and other substances between cells and the blood takes place across the extremely thin walls of capillaries. Q: What are the smallest type of blood vessels? Choices: - viens - arteries - neurons - capillaries A:
Answer:
capillaries