Problem: OPTIONS:
- velocity
- pull
- motion
- gravity
Q: Answer the following question given this paragraph: Regardless of what gravity is a force between masses or the result of curves in space and time the effects of gravity on motion are well known. You already know that gravity causes objects to fall down to the ground. Gravity affects the motion of objects in other ways as well. Q: What is the force that causes objects to fall down to the ground? A:
Answer: gravity

Problem:OPTIONS:
- antigens
- mutations
- allergens
- alleles

Answer the following question given this paragraph: Recall that our DNA is wound into chromosomes . Each of our chromosomes contains a long chain of DNA that encodes hundreds, if not thousands, of genes. Each of these genes can have slightly different versions from individual to individual. These variants of genes are called alleles . Each parent only donates one allele for each gene to an offspring. Q: What are variants of genes called? A:
****
A: alleles

Answer the following question given this paragraph: 40.2 Components of the Blood Specific components of the blood include red blood cells, white blood cells, platelets, and the plasma, which contains coagulation factors and serum. Blood is important for regulation of the body's pH, temperature, osmotic pressure, the circulation of nutrients and removal of waste, the distribution of hormones from endocrine glands, and the elimination of excess heat; it also contains components for blood clotting. Red blood cells are specialized cells that contain hemoglobin and circulate through the body delivering oxygen to cells. White blood cells are involved in the immune response to identify and target invading bacteria, viruses, and other foreign organisms; they also recycle waste components, such as old red blood cells. Platelets and blood clotting factors cause the change of the soluble protein fibrinogen to the insoluble protein fibrin at a wound site forming a plug. Plasma consists of 90 percent water along with various substances, such as coagulation factors and antibodies. The serum is the plasma component of the blood without the coagulation factors. Q: Red blood cells, white blood cells, platelets, and plasma are all components of what fluid? A:
OPTIONS:
- heart
- brain
- Vessals
- blood
blood

Answer the following question given this paragraph: Flying birds are divided into 29 orders. The most common orders include landfowl, waterfowl, shorebirds, diurnal and nocturnal raptors, parrots, and perching birds. Q: How many orders can flying birds be divided into? A:
OPTIONS:
- 31
- 44
- 19
- 29

Answer: 29

Question: Answer the following question given this paragraph: At the end of the Precambrian, a mass extinction occurred. In a mass extinction , the majority of species die out. The Precambrian mass extinction was the first of six mass extinctions that occurred on Earth. It's not certain what caused this first mass extinction. Changes in Earth's geology and climate were no doubt involved. Q: What was the first mass extinction that occurred on earth? A:
OPTIONS:
- late Devonian mass extinction
- paleozoic mass extinction
- proterozoic mass extinction
- precambrian mass extinction
Answer: precambrian mass extinction

input: OPTIONS:
- excess of decreased and other nutrients
- excess of carbonate and other nutrients
- excess of increased and other nutrients
- excess of fertilizers and other nutrients Now, answer this question: Answer the following question given this paragraph: Fertilizer in runoff leads to algal blooms and dead zones in bodies of water. This type of pollution is called nonpoint-source pollution. Point-source pollution includes waste water from factories and sewage treatment plants. Hot water discharge causes thermal pollution. Q: What causes eutrophication to occur? A:
A:
output:
excess of fertilizers and other nutrients