input with options: Answer the following question given this paragraph: The release of calcium ions initiates muscle contractions. Watch this video (http://openstaxcollege. org/l/calciumrole) to learn more about the role of calcium. (a) What are "T-tubules" and what is their role? (b) Please describe how actinbinding sites are made available for cross-bridging with myosin heads during contraction. Q: The release of calcium ions initiates what? A:
OPTIONS:
- exhalation
- cramps
- spasms
- muscle contractions
output: muscle contractions

Q: Answer the following question given this paragraph: How fast a chemical reaction occurs is called the reaction rate . Several factors affect the rate of a given chemical reaction. They include the:. Q: What term is used to describe how fast a chemical reaction occurs? A:

OPTIONS:
- response time
- catalysis
- velocity
- reaction rate

A: reaction rate

input: OPTIONS:
- reproduction
- symbiosis
- collecting
- recycling Now, answer this question: Answer the following question given this paragraph: Most prokaryotes get both energy and carbon from other living things. Many of them are decomposers. They break down wastes and remains of dead organisms. In this way, they help to recycle carbon and nitrogen through ecosystems. Q: By breaking down wastes and remains of dead organisms, decomposers perform what function in an ecosystem? A:
A:
output: recycling

Answer the following question given this paragraph: Linkage Map for the Human X Chromosome. This linkage map shows the locations of several genes on the X chromosome. Some of the genes code for normal proteins. Others code for abnormal proteins that lead to genetic disorders. Which pair of genes would you expect to have a lower frequency of crossing-over: the genes that code for hemophilia A and G6PD deficiency, or the genes that code for protan and Xm?. Q: What map shows the locations of several genes on the x chromosome? A:

OPTIONS:
- The genomic map
- the component map
- The allelic map
- the linkage map

Answer: the linkage map

Problem: OPTIONS:
- electron
- proton
- organ
- cell
Q: Answer the following question given this paragraph: A cell is the smallest unit of a living thing. A living thing, like you, is called an organism. Thus, cells are the basic building blocks of all organisms. In multicellular organisms, several cells of one particular kind interconnect with each other and perform shared functions to form tissues (for example, muscle tissue, connective tissue, and nervous tissue), several tissues combine to form an organ (for example, stomach, heart, or brain), and several organs make up an organ system (such as the digestive system, circulatory system, or nervous system). Several systems functioning together form an organism (such as an elephant, for example). There are many types of cells, and all are grouped into one of two broad categories: prokaryotic and eukaryotic. Animal cells, plant cells, fungal cells, and protist cells are classified as eukaryotic, whereas bacteria and archaea cells are classified as prokaryotic. Before discussing the criteria for determining whether a cell is prokaryotic or eukaryotic, let us first examine how biologists study cells. Q: What is the smallest unit of a living thing? A:
Answer: cell

Answer the following question given this paragraph: Q: What class of animal, including hydras and jellies, is considered the simplest to contain a nervous system? A:

OPTIONS:
- fish
- sponges
- prokaryotes
- cnidarians

Answer:
cnidarians