Answer the following question given this paragraph: Inversions are reversing the orientation of a chromosomal segment. Q: Reversing the orientation of a chromosomal segment is called what? Choices: - spontaneous mutation - occurrences - volatiles - inversions A:
inversions
Answer the following question given this paragraph: Q: What is the change frogs and butterflies go through? Choices: - transformation - hiatus - parthenogenesis - metamorphosis A:
metamorphosis
Q: Answer the following question given this paragraph: Nervous tissue may become infected by microorganisms. Meningitis, for example, is caused by a viral or bacterial infection of the tissues covering the brain. This may cause the brain to swell and lead to brain damage and death. Q: Meningitis, for example, is caused by a viral or bacterial infection of the tissues covering what? Choices: - the skin - the liver - the lungs - the brain A:
A: the brain
Question: Answer the following question given this paragraph: In rheumatoid arthritis, the immune system attacks joints. This causes joint damage and pain. Q: Which type of arthritis causes the immune system to attack joints? Choices: - Osteoarthritis - Gout - Spondylarthropathies - rheumatoid A:
Answer: rheumatoid
*Question*
Answer the following question given this paragraph: Alpha decay occurs when an unstable nucleus emits an alpha particle and energy. The diagram in Figure below represents alpha decay. An alpha particle contains two protons and two neutrons, giving it a charge of +2. A helium nucleus has two protons and two neutrons, so an alpha particle is represented in nuclear equations by the symbol . The superscript 4 is the mass number (2 protons + 2 neutrons). The subscript 2 is the charge of the particle as well as the number of protons. Q: What occurs when an unstable nucleus emits an alpha particle and energy? Choices: - radar decay - nucleus decay - alpha radition - alpha decay A:
**Answer**
alpha decay
(Q).
Answer the following question given this paragraph: Floods are a natural part of the water cycle, but they can cause a lot of damage. Farms and homes may be lost, and people may die. In 1939, millions of people died in a flood in China. Although freshwater is needed to grow crops and just to live, too much freshwater in the same place at once can be deadly. Q: What natural part of the water cycle can cause damage and death? Choices: - clouds - evaporation - expiration - floods A:
(A).
floods