input: OPTIONS:
- respiration
- tissue
- skin
- metabolism Now, answer this question: Answer the following question given this paragraph: Like amphibians, reptiles are ectotherms with a slow metabolic rate. Their metabolism doesn't generate enough energy to keep their body temperature stable. Instead, reptiles regulate their body temperature through their behavior. For example, the crocodile in Figure below is soaking up heat from the environment by basking in the sun. Because of their ectothermy, reptiles can get by with as little as one tenth the food needed by endotherms such as mammals. Some species of reptiles can go several weeks between meals. Q: A reptile's what doesn't generate enough energy to keep their body temperature stable? A:
A:
output: metabolism

Answer the following question given this paragraph: Nitrogen-fixing bacteria change nitrogen gas from the atmosphere to nitrates in soil. Q: What type of bacteria change nitrogen gas from the atmosphere to nitrates in soil? A:

OPTIONS:
- hydrophylic bacteria
- multicellular bacteria
- spiral bacteria
- nitrogen fixing bacteria

Answer: nitrogen fixing bacteria

Problem: OPTIONS:
- combined
- proline
- fullerene
- alkane
Q: Answer the following question given this paragraph: An alkane is a hydrocarbon in which there are only single covalent bonds. The simplest alkane is methane, with the molecular formula CH 4 . The carbon is the central atom and makes four single covalent bonds to hydrogen atoms. Q: What is a hydrocarbon in which there are only single covalent bonds? A:
Answer: alkane

Problem:OPTIONS:
- glucose
- lipids
- nucleus
- mitochondria

Answer the following question given this paragraph: Figure 7.5 In eukaryotes, oxidative phosphorylation takes place in mitochondria. In prokaryotes, this process takes place in the plasma membrane. (Credit: modification of work by Mariana Ruiz Villareal). Q: In eukaryotes, oxidative phosphorylation takes place in what? A:
****
A: mitochondria

Answer the following question given this paragraph: Chemical sedimentary rocks form when crystals precipitate out from a liquid. The mineral halite, also called rock salt, forms this way. You can make halite! Leave a shallow dish of salt water out in the Sun. As the water evaporates, salt crystals form in the dish. There are other chemical sedimentary rocks, like gypsum ( Figure below ). Q: What are formed when crystals precipitate out from a liquid? A:
OPTIONS:
- diamonds
- additive sedimentary rocks
- gaseous sedimentary rocks
- chemical sedimentary rocks
chemical sedimentary rocks

Answer the following question given this paragraph: For many decades, scientists have known that atoms consist of electrons and other particles called protons and neutrons. Recently they found that there are even smaller particles in atoms. Scientists call these extremely tiny particles by the funny name of quarks. As you can see in this diagram, there are several different kinds of quarks, called up quarks, down quarks, top quarks, bottom quarks, charm quarks, and strange quarks. In this chapter you'll learn about these unusual particles and also other particles inside the atom. Q: For many decades, scientists have known that atoms consist of electrons and other particles called protons and? A:
OPTIONS:
- rods
- waves
- nanoparticles
- neutrons

Answer:
neutrons