Answer the following question given this paragraph: Q: When conditions deteriorate, hydras can reproduce sexually, forming resistant zygotes that remain dormant until when? Choices: - Hydras choose - Temperature rise - Spring - conditions improve A:
conditions improve
(Question)
Answer the following question given this paragraph: Ionic compounds are named for their positive and negative ions. The name of the positive ion always comes first, followed by the name of the negative ion. For example, positive sodium ions and negative chloride ions form the compound named sodium chloride. Similarly, positive calcium ions and negative chloride ions form the compound named calcium chloride. Q: The name of which ion always comes first? Choices: - negative ions - similar ion - constant ion - positive ion A:
(Answer)
positive ion
Ques: Answer the following question given this paragraph: Q: Glucagon and insulin are produced in what organ? Choices: - hypothalamus - thymus - thyroid - pancreas A:
Ans: pancreas
(Q).
Answer the following question given this paragraph: When the helium is gone, the stars become white dwarfs. Q: When the helium is gone, the stars become what? Choices: - comets - yellow dwarfs - red giants - white dwarfs A:
(A).
white dwarfs
Ques:Answer the following question given this paragraph: There are only about 25 living species of lancelets. They inhabit the ocean floor where the water is shallow. Lancelet larvae are free-swimming. The adults can swim but spend most of their time buried in the sand. Like tunicates, lancelets are filter feeders. They take in water through their mouth and expel it through an opening called the atriopore (see Figure below ). Lancelets reproduce sexually and have separates sexes. Q: Where do lancelets live? Choices: - on land - riverbeds - deep sea caves - shallow ocean water A:

Ans:shallow ocean water
Question: Answer the following question given this paragraph: The overall balanced equation for a chemical reaction does not always tell us how a reaction actually proceeds. In many cases, the overall reaction takes place in a series of small steps. An elementary step (or elementary reaction) is one step in a series of simple reactions that show the progress of a reaction at the molecular level. In terms of collision theory, each elementary step corresponds to a single collision. A reaction mechanism is the sequence of elementary steps that together comprise an entire chemical reaction. As an analogy, consider the route that you might take while driving to the grocery store. That route may consist of several turns, similar to the elementary steps. The overall reaction specifies only the beginning point (your house) and the final destination (the store), with no information about the specifics in between. Q: What is the sequence of elementary steps that together comprise an entire chemical reaction called? Choices: - reaction circle - mechanical mechanism - basic reaction - reaction mechanism A:
Answer:
reaction mechanism