Answer the following question given this paragraph: At some point, the variation probably came from a mutation. A mutation is a random change in an organism's genes. Mutations are natural. Some are harmful, but many are neutral. If the trait from the mutation is beneficial, that organism may have a better chance to survive. An organism that survives is likely to have offspring. If it does, it may pass the mutation on to its offspring. The offspring may be more likely to survive. Q: A mutation is a random change in an organism's what? Choices: - power - structure - babies - genes A:
genes
(Question)
Answer the following question given this paragraph: Q: Where do ectotherms get most of their heat? Choices: - food - metabolism - internally - external sources A:
(Answer)
external sources
Ques: Answer the following question given this paragraph: Not all atoms of an element must have precisely the same mass. Atoms of one element can be transformed into another through nuclear reactions. The compositions of many solid compounds are somewhat variable. Under certain circumstances, some atoms can be divided (split into smaller particles). These modifications illustrate the effectiveness of the scientific method; later experiments and observations were used to refine Dalton's original theory. Q: Atoms of one element can be transformed into another through which process? Choices: - magnetic reactions - longer reactions - developed reactions - nuclear reactions A:
Ans: nuclear reactions
(Q).
Answer the following question given this paragraph: Less often, a new species arises without geographic separation. This is called sympatric speciation . The following example shows one way this can occur. Q: What is it called when a new species arises without geographic separation? Choices: - spontaneous evolution - Allopatric speciation - quantum speciation - sympatric speciation A:
(A).
sympatric speciation
Ques:Answer the following question given this paragraph: Water is heated in a boiler that burns a fuel such as natural gas or heating oil. The boiler converts the chemical energy stored in the fuel to thermal energy. Q: A boiler converts the chemical energy stored in fuel into what type of energy? Choices: - Thermometric Energy - ultraviolet energy - atmospheric energy - thermal energy A:

Ans:thermal energy
Answer the following question given this paragraph: Water can be a solid, liquid, or a gas. Q: Water can be a solid, liquid, and what other form? Choices: - ooze - square - plasma - gas A:
gas