Answer the following question given this paragraph: Scientists find answers using tests : When scientists want to answer a question, they search for evidence using experiments. An experiment is a test to see if their explanation is right or wrong. Evidence is made up of the observations a scientist makes during an experiment. To study the cause of death in the chimpanzees, scientists may give the chimps nutrients in the form of nuts, berries, and vitamins to see if they are dying from a lack of food. This test is the experiment. If fewer chimps die, then the experiment shows that the chimps may have died from not having enough food. This is the evidence. Q: What is the term for a test to see if a scientific explanation is right or wrong? Choices: - invention - hypothesis - generation - experiment A:
experiment
Answer the following question given this paragraph: Primary succession occurs in an area that has never before been colonized. Pioneer species include bacteria and lichens that can grow on bare rock and help make soil. Q: What kind of succession occurs in an area that has never before been colonized? Choices: - addition succession - secondary succession - support succession - primary succession A:
primary succession
Q: Answer the following question given this paragraph: Since then, the distinction between organic and inorganic compounds and reactions has blurred. Currently, the field of organic chemistry studies the structure and reactivity of nearly all carbon-containing compounds. Over twenty million organic compounds are known, ranging from very simple molecules to complex proteins. Q: The field of organic chemistry studies the structure and reactivity of compounds containing what element? Choices: - nitrogen - hydrogen - oxygen - carbon A:
A: carbon
Question: Answer the following question given this paragraph: Flowers and Fruits as an Evolutionary Adaptation Angiosperms produce their gametes in separate organs, which are usually housed in a flower. Both fertilization and embryo development take place inside an anatomical structure that provides a stable system of sexual reproduction largely sheltered from environmental fluctuations. Flowering plants are the most diverse phylum on Earth after insects; flowers come in a bewildering array of sizes, shapes, colors, smells, and arrangements. Most flowers have a mutualistic pollinator, with the distinctive features of flowers reflecting the nature of the pollination agent. The relationship between pollinator and flower characteristics is one of the great examples of coevolution. Following fertilization of the egg, the ovule grows into a seed. The surrounding tissues of the ovary thicken, developing into a fruit that will protect the seed and often ensure its dispersal over a wide geographic range. Not all fruits develop from an ovary; such structures are "false fruits. " Like flowers, fruit can vary tremendously in appearance, size, smell, and taste. Tomatoes, walnut shells and avocados are all examples of fruit. As with pollen and seeds, fruits also act as agents of dispersal. Some may be carried away by the wind. Many attract animals that will eat the fruit and pass the seeds through their digestive systems, then deposit the seeds in another location. Cockleburs are covered with stiff, hooked spines that can hook into fur (or clothing) and hitch a ride on an animal for long distances. The cockleburs that clung to the velvet trousers of an enterprising Swiss hiker, George de Mestral, inspired his invention of the loop and hook fastener he named Velcro. Q: Angiosperms produce their gametes in separate organs, which are usually housed in these? Choices: - leaves - stems - seeds - flowers A:
Answer: flowers
*Question*
Answer the following question given this paragraph: The concentration of a solution represents the percentage of the solution that is the solute. You can calculate the concentration of a solution using this formula:. Q: What does the concentration of a solution represent? Choices: - spending of solute - the darkness - the percentage of contaminates - percentage of solute A:
**Answer**
percentage of solute
Q: Answer the following question given this paragraph: Eukaryotic cells also contain other organelles besides the nucleus. An organelle is a structure within the cytoplasm that performs a specific job in the cell. Organelles called mitochondria, for example, provide energy to the cell, and organelles called vacuoles store substances in the cell. Organelles allow eukaryotic cells to carry out more functions than prokaryotic cells can. This allows eukaryotic cells to have greater cell specificity than prokaryotic cells. Ribosomes, the organelle where proteins are made, are the only organelles in prokaryotic cells. Q: What is the term for a structure within the cytoplasm that performs a specific job in the cell? Choices: - vacuole - nucleolus - molecule - organelle A:
A: organelle