Answer the following question given this paragraph: 35.5 Growth, morphogenesis, and cell differentiation produce the plant body. Q: Growth, morphogenesis, and cell differentiation produce the plant what? Choices: - fur - fat - tail - body A:
body
Answer the following question given this paragraph: The lens of the eye is a convex lens. It fine-tunes the focus so an image forms on the retina at the back of the eye. Tiny muscles control the shape of the lens to focus images of close or distant objects. Q: What shape is the lens of the eye? Choices: - spherical - angular - concave - convex A:
convex
Q: Answer the following question given this paragraph: When a colorless solution of lead(II) nitrate is added to a colorless solution of potassium iodide, a yellow solid called a precipitate is instantly produced ( Figure below ). A precipitate is a solid product that forms from a reaction and settles out of a liquid mixture. The formation of a precipitate may also indicate the occurrence of a chemical reaction. Q: What is produced when a colorless solution of lead nitrate is added to a colorless solution of potassium iodide? Choices: - blue solid precipitate - brown solid precipitate - purple solid precipitate - yellow solid precipitate A:
A: yellow solid precipitate
Question: Answer the following question given this paragraph: Group 7 (Mn, Tc, and Re) Continuing across the periodic table, we encounter the group 7 elements (Table 23.5 "Some Properties of the Elements of Groups 6 and 7"). One group 7 metal (Mn) is usually combined with iron in an alloy called ferromanganese, which has been used since 1856 to improve the mechanical properties of steel by scavenging sulfur and oxygen impurities to form MnS and MnO. Technetium is named after the Greektechnikos, meaning "artificial," because all its isotopes are radioactive. One isotope, 99mTc (m for metastable), has become an important biomedical tool for imaging internal organs. (For more information on biomedical imaging, see Chapter 20 "Nuclear Chemistry", Section 20.5 "Applied Nuclear Chemistry". ) Because of its scarcity, Re is one of the most expensive elements, and its applications are limited. It is, however, used in a bimetallic Pt/Re catalyst for refining high-octane gasoline. All three group 7 elements have seven valence electrons and can form compounds in the +7 oxidation state. Once again, the lightest element exhibits multiple oxidation states. Compounds of Mn in oxidation states ranging from 3 to +7 are known, with the most common being +2 and +4 (Figure 23.5 "Compounds of Manganese in Oxidation States +2 to +7"). In contrast, compounds of Tc and Re in the +2 oxidation state are quite rare. Because the electronegativity of Mn is anomalously low, elemental manganese is unusually reactive. In contrast, the chemistry of Tc is similar to that of Re because of their similar size and electronegativity, again a result of the lanthanide contraction. Due to the stability of the half-filled 3d5 electron configuration, the aqueous Mn3+ ion, with a 3d4 valence electron configuration, is a potent oxidant that is able to oxidize water. It is difficult to generalize about other oxidation states for Tc and Re because their stability depends dramatically on the nature of the compound. Consistent with higher oxidation states being more stable for the heavier transition metals, reacting Mn... Q: Technetium is named after the greektechnikos, meaning "artificial," because all its isotopes are what? Choices: - rare - plastic - neutral - radioactive A:
Answer: radioactive
*Question*
Answer the following question given this paragraph: Flatworms have no true body cavity, but they do have bilateral symmetry. Due to the lack of a body cavity,flatworms are known as acoelomates. Q: What term is given to flatworms because they lack a body cavity? Choices: - pores - sporozoans - sporazoa - acoelomates A:
**Answer**
acoelomates
Answer the following question given this paragraph: Q: What causes blood vessels to grow toward the tumour in cancer cells? Choices: - harnessing molecules - addressing molecules - communicating molecules - signaling molecules A:
signaling molecules