Answer the following question given this paragraph: Q: What takes the shape of the container they are placed in and have a definite volume? Choices: - gases - solids - loads - liquids A:
liquids
Answer the following question given this paragraph: Q: In humans, how many chromosomes does each somatic cell have? Choices: - 51 - 48 - 36 - 46 A:
46
Q: Answer the following question given this paragraph: Most hormones are controlled by negative feedback in which the hormone feeds back to decrease its own production. This type of feedback brings things back to normal whenever they start to become too extreme. Positive feedback is much less common because it causes conditions to become increasingly extreme. Q: Most hormones are controlled by what type of feedback, which causes the hormone to decrease its own production? Choices: - positive - neutral - unusual - negative A:
A: negative
Question: Answer the following question given this paragraph: Molecules move from an area of high concentration to an area of lower concentration until an equilibrium is met. The molecules continue to cross the membrane at equilibrium, but at equal rates in both directions. Q: Molecules move from an area of high concentration to an area of lower concentration until an what is met? Choices: - respiration - freezing point - oxidation - equilibrium A:
Answer: equilibrium
*Question*
Answer the following question given this paragraph: Water and chemical elements that organisms need keep recycling through biogeochemical cycles. These cycles include biotic and abiotic components of ecosystems. Q: Water and chemical elements that organisms need keep recycling through biogeochemical what? Choices: - mutations - levels - effects - cycles A:
**Answer**
cycles
Answer the following question given this paragraph: The Sun is Earth's main source of energy. The Sun gives us both light and heat. The Sun changes hydrogen into helium through nuclear fusion. This releases huge amounts of energy. The energy travels to the Earth mostly as visible light. The energy is carried through the empty space by radiation . We can use sunlight as an energy resource, called solar energy ( Figure above ). Q: What is earth's main source of energy? Choices: - the atmosphere - the moon - the core - the sun A:
the sun