Problem:OPTIONS:
- reptiles
- insects
- amphibians
- mammals

Answer the following question given this paragraph: Mammals are a class of endothermic vertebrates. They have four limbs and produce amniotic eggs. The mammal class is defined by the presence of mammary glands and hair (or fur). Other traits of mammals include sweat glands in their skin, alveoli in their lungs, a four-chambered heart, and a brain covering called the neocortex. Q: What class of animals have four limbs and produce amniotic eggs? A:
****
A: mammals

Answer the following question given this paragraph: Protists use cilia, pseudopods, or flagella to move. Q: What organisms use cilia, pseudopods, or flagella to move? A:
OPTIONS:
- bacteria
- arthropods
- prokaryotes
- protists
protists

Answer the following question given this paragraph: Q: What prevents solutes that have accumulated in the xylem from leaking back into the soil solution? A:
OPTIONS:
- the exoskeleton
- the exodermis
- the altostratus
- the endodermis

Answer: the endodermis

Question: Answer the following question given this paragraph: A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons. Valence electrons are the electrons in the outer energy level of an atom that may be involved in chemical interactions. Valence electrons are the basis of all chemical bonds. For a video introduction to chemical bonds, go to this URL: http://www. youtube. com/watch?v=CGA8sRwqIFg . Q: What forms when atoms share or transfer valence electrons? A:
OPTIONS:
- replicas
- levels
- fusion
- bonds
Answer: bonds

input with options: Answer the following question given this paragraph: Current Situation : Currently the heating effect of extra greenhouse gases (since the start of the industrial revolution) is equal to about . Thus the recent period has recorded parallel increases in concentration of carbon dioxide and average global temperature. As more greenhouse gases are put into the atmosphere the temperature will increase further. There are certain effects of a warmer Earth (discussed more in optional section), which could accelerate the process, even if no more greenhouse gases are put into the atmosphere (an unlikely prospect for the foreseeable future). Q: Earth's temperature will increase further as more of what colorfully nicknamed gases are put into the atmosphere? A:
OPTIONS:
- bluehouse gases
- blue dioxide gases
- green dioxide gases
- greenhouse gases
output: greenhouse gases

Problem: OPTIONS:
- repolarization
- conduction
- excitation
- depolarization
Q: Answer the following question given this paragraph: Q: Binding of acetylcholine to receptors on the muscle fiber leads to a? A:
Answer:
depolarization