Answer the following question given this paragraph: Some benthos live near vents on the deep ocean floor. Tubeworms are an example ( Figure below ). Scalding hot water pours out of the vents. The hot water contains chemicals that some specialized bacteria can use to make food. Tubeworms have the bacteria living inside them. The bacteria get protection and the tubeworms get some of the food. Q: Give an example of benthos that live near vents on the deep ocean floor. Choices: - amphipods - crustaceans - arthropods - tubeworms A:
tubeworms
Answer the following question given this paragraph: The simplest organic compounds are hydrocarbons and are composed of carbon and hydrogen. Q: What two element makes up a hyrdocarbon? Choices: - nitrogen and carbon - hydrogen and carbonite - helium and carbon - carbon and hydrogen A:
carbon and hydrogen
Q: Answer the following question given this paragraph: Early in the development of a human fetus, the skeleton is made entirely of cartilage . The relatively soft cartilage gradually turns into hard bone through ossification . This is a process in which mineral deposits replace cartilage. As shown in Figure below , ossification of long bones, which are found in the arms and legs, begins at the center of the bones and continues toward the ends. By birth, several areas of cartilage remain in the skeleton, including growth plates at the ends of the long bones. This cartilage grows as the long bones grow, so the bones can keep increasing in length during childhood. Q: Soft cartilage gradually turns into hard bone through what process? Choices: - oxidation - elongation - calcification - ossification A:
A: ossification
Question: Answer the following question given this paragraph: Absorption of light by a hydrogen atom. (a) When a hydrogen atom absorbs a photon of light, an electron is excited to an orbit that has a higher energy and larger value of n. (b) Images of the emission and absorption spectra of hydrogen are shown here. Emission and absorption spectra form the basis of spectroscopy, which uses spectra to provide information about the structure and the composition of a substance or an object. In particular, astronomers use emission and absorption spectra to determine the composition of stars and interstellar matter. As an example, consider the spectrum of sunlight shown in Figure 6.14 "The Visible Spectrum of Sunlight". Because the sun is very hot, the light it emits is in. Q: What are scientists able to determine about stars using emission and absorption spectra? Choices: - shape - size - distance - composition A:
Answer: composition
*Question*
Answer the following question given this paragraph: Cell division is the process in which a cell divides to form two new cells. The original cell is called the parent cell. The two new cells are called daughter cells. All cells contain DNA. DNA is the nucleic acid that stores genetic information. Before a cell divides its DNA must be copied. That way, each daughter cell gets a complete copy of the parent cell's genetic material. Q: After cell division what are the two new cells called? Choices: - offspring cells - production cells - step cells - daughter cells A:
**Answer**
daughter cells
(Q).
Answer the following question given this paragraph: Lewis Diagrams Chemists use simple diagrams to show an atom's valence electrons and how they transfer. These diagrams have two advantages over the electron shell diagrams introduced in Chapter 2 "Elements, Atoms, and the Periodic Table". First, they show only valence electrons. Second, instead of having a circle around the chemical symbol to represent the electron shell, they have up to eight dots around the symbol; each dot. Q: Chemists use simple diagrams to show an atom's valence electrons and how they do what? Choices: - bond - react - escape - transfer A:
(A).
transfer