Ques: Answer the following question given this paragraph: Echinoderms are marine organisms that make up the phylum Echinodermata. They can be found in the ocean from the equator to the poles. There are roughly 6000 living species of echinoderms. They are among the most distinctive organisms within the animal kingdom. Members of the phylum include sea stars (starfish), sand dollars, and feather stars, shown in Figure below . See "Different But Equal" at http://www. pbs. org/kcet/shapeoflife/episodes/ultimate. html for an introduction to echinoderms. Q: Echinoderms have what type of body symmetry? Choices: - Translational symmetry - Rotational symmetry - Reflectional symmetry - radial symmetry A:
Ans: radial symmetry

Ques: Answer the following question given this paragraph: Vibrating objects such as drumheads produce sound energy. Q: Vibrating objects such as drumheads produce what? Choices: - negative ions - light - heat - sound energy A:
Ans: sound energy

Ques: Answer the following question given this paragraph: Mammals generate heat mainly by maintaining a high rate of metabolism. Compared with the cells of other animals, the cells of mammals have more mitochondria. Mitochondria are the cell organelles that generate energy. Mammals may also produce little bursts of heat by shivering. Shivering occurs when many muscles all contract slightly at the same time. The muscle contractions generate a small amount of heat. Q: How do mammals generate heat? Choices: - running around fast - eating spicy foods - maintaning low metabolism - maintaining high metabolism A:
Ans: maintaining high metabolism

Ques: Answer the following question given this paragraph: Flowering vascular plants also have diverse leaves. However, the leaves of all flowering plants have two basic parts in common: the blade and petiole (see Figure above ). The blade of the leaf is the relatively wide, flat part of the leaf that gathers sunlight and undergoes photosynthesis. The petiole is the part that attaches the leaf to a stem of the plant. This occurs at a node. Q: The leaves of all of what type of plants have two basic parts in common: the blade and petiole? Choices: - perennials - deciduous - evergreen - flowering plants A:
Ans:
flowering plants