Answer the following question given this paragraph: Graphite is one of three forms of crystalline, or crystal-forming, carbon. Carbon also exists in an amorphous, or "shapeless," form in substances such as coal and charcoal. Different forms of the same element are called allotropes. Besides graphite, the other allotropes of crystalline carbon are diamond and fullerenes. All three forms exist as crystals rather than molecules. In a crystal, many atoms are bonded together in a repeating pattern that may contains thousands of atoms. The arrangement of atoms in the crystal differs for each form of carbon and explains why the different forms have different properties. For an entertaining, video-game introduction to the three forms of crystalline carbon, go to this URL: http://www. youtube. com/watch?v=GIHmfBsHsCY . Q: Different forms of the same element are called what? Choices: - subclasses - amines - polymorphs - allotropes A:
allotropes
(Question)
Answer the following question given this paragraph: Q: The hemolymph and body cells exchange chemicals within what body part? Choices: - the lungs - the heart - the gums - the sinuses A:
(Answer)
the sinuses
Ques: Answer the following question given this paragraph: Angiosperms , or flowering plants, are the most abundant and diverse plants on Earth. Angiosperms evolved several reproductive adaptations that have contributed to their success. Like all vascular plants, their life cycle is dominated by the sporophyte generation. A typical angiosperm life cycle is shown in Figure below . Q: What are the most diverse plants on earth? Choices: - conifers - gymnosperms - grasses - angiosperms A:
Ans: angiosperms
(Q).
Answer the following question given this paragraph: Products are substances that are produced in the reaction. Q: Substances produced by a reaction are known as? Choices: - solutions - compounds - minerals - products A:
(A).
products
Ques:Answer the following question given this paragraph: Eudicots Eudicots, or true dicots, are characterized by the presence of two cotyledons. Veins form a network in leaves. Flower parts come in four, five, or many whorls. Vascular tissue forms a ring in the stem. (In monocots, vascular tissue is scattered in the stem. ) Eudicots can be herbaceous (like dandelions or violets), or produce woody tissues. Most eudicots produce pollen that is trisulcate or triporate, with three furrows or pores. The root system is usually anchored by one main root developed from the embryonic radicle. Eudicots comprise two-thirds of all flowering plants. Many species seem to exhibit characteristics that belong to either group; therefore, the classification of a plant as a monocot or a eudicot is not always clearly evident (Table 14.1). Q: The root system is usually anchored by one main root developed from what? Choices: - sperm radicle - nuclei radicle - organisms radicle - embryonic radicle A:

Ans:embryonic radicle
Ques:Answer the following question given this paragraph: Insects eat in many different ways and they eat a huge range of foods. Around half are plant-eaters, feeding on leaves, roots, seeds, nectar, or wood. Aphids and leafhoppers suck up the sap from plants. Praying mantises are predators, hunting other small creatures, including insects like moths, caterpillars, flies, beetles, and spiders. Insects like mosquitoes and aphids have special mouthparts that help them pierce and suck. Others, like assassin bugs ( Figure below ) and certain species of female mosquitoes, eat other insects. Fleas and lice are parasites, eating the flesh or blood of larger animals without killing them. Q: What are the insects that suck up the sap from plants? Choices: - plagues and leafhoppers - butterflies and leafhoppers - roaches and leafhoppers - aphids and leafhoppers A:

Ans:
aphids and leafhoppers