Answer the following question given this paragraph: Q: If environmental conditions deteriorate, many species can form protective what? Choices: - fibers - proteins - shells - cysts A:
cysts
Answer the following question given this paragraph: Like the immune systems of other vertebrates, the human immune system is adaptive. If pathogens manage to get through the body's first two lines of defense, the third line of defense takes over. The third line of defense is referred to as the immune response . This defense is specific to a particular pathogen, and it allows the immune system to "remember" the pathogen after the infection is over. If the pathogen tries to invade the body again, the immune response against that pathogen will be much faster and stronger. Q: The third line of defense of the immune system is called? Choices: - the sudden response - the asymptomatic response - the malignant response - the immune response A:
the immune response
Q: Answer the following question given this paragraph: The Gaia hypothesis states that the biosphere is its own living organism. Q: What hypothesis states that the biosphere is its own living organism Choices: - the seager hypothesis - Big Bang theory - small world theory - the gaia hypothesis A:
A: the gaia hypothesis
Question: Answer the following question given this paragraph: Bases are ionic compounds that produce negative hydroxide ions (OH - ) when dissolved in water. An ionic compound contains positive metal ions and negative nonmetal ions held together by ionic bonds. (Ions are atoms that have become charged particles because they have either lost or gained electrons. ) An example of a base is sodium hydroxide (NaOH). When it dissolves in water, it produces negative hydroxide ions and positive sodium ions (Na + ). This can be represented by the equation:. Q: What are the ionic compounds that produce negative hydroxide ions when dissolved in water? Choices: - isotopes - acids - enzymes - bases A:
Answer: bases
*Question*
Answer the following question given this paragraph: Materials that have low resistance to electric current are called electric conductors . Many metalsincluding copper, aluminum, and steelare good conductors of electricity. Water that has even a tiny amount of impurities in it is an electric conductor as well. Q: Water and many metals are materials that have low resistance to electric currents and are therefore known as what? Choices: - radioactive - good insulators - electromagnets - electric conductors A:
**Answer**
electric conductors
*Question*
Answer the following question given this paragraph: Q: An example of hydrolysis working within our bodies is the process of what? Choices: - breathing - absorption - filtration - digestion A:
**Answer**
digestion