Answer the following question given this paragraph: Only radioactive isotopes have half-lives. Q: The first law of thermodynamics deals with the total amount of energy in what? Choices: - organism - springs - galaxy - universe A:
universe
Answer the following question given this paragraph: Mistakes may occur during meiosis that result in nondisjunction . This is the failure of replicated chromosomes to separate during meiosis (the animation at the link below shows how this happens). Some of the resulting gametes will be missing a chromosome, while others will have an extra copy of the chromosome. If such gametes are fertilized and form zygotes, they usually do not survive. If they do survive, the individuals are likely to have serious genetic disorders. Table below lists several genetic disorders that are caused by abnormal numbers of chromosomes. Most chromosomal disorders involve the X chromosome. Look back at the X and Y chromosomes and you will see why. The X and Y chromosomes are very different in size, so nondisjunction of the sex chromosomes occurs relatively often. http://learn. genetics. utah. edu/content/begin/traits/predictdisorder/index. html. Q: What is the failure of replicated chromosomes during meiosis to separate known as? Choices: - pollenation - regression - separation - nondisjunction A:
nondisjunction
Q: Answer the following question given this paragraph: Potent oxidants are needed to oxidize the noble gases to form compounds in positive oxidation states. Q: What are needed to oxidize the noble gases to form compounds in positive oxidation states? Choices: - metal oxidants - protein oxidants - bacteria oxidants - potent oxidants A:
A: potent oxidants
Question: Answer the following question given this paragraph: The answer is actually "no. " A virus is essentially DNA or RNA surrounded by a coat of protein ( Figure below ). It is not made of a cell , and cannot maintain a stable internal environment ( homeostasis ). Recall that a cell is the basic unit of living organisms. So if a virus is not made of at least one cell, can it be living? Viruses also cannot reproduce on their ownthey need to infect a host cell to reproduce. So a virus is very different from any of the organisms that fall into the three domains of life. Q: A virus is essentially dna or rna surrounded by a coat of what? Choices: - acids - paint - organism - protein A:
Answer: protein
*Question*
Answer the following question given this paragraph: Chemical digestion could not take place without the help of digestive enzymes and other substances secreted into the GI tract. An enzyme is a protein that speeds up a biochemical reaction. Digestive enzymes speed up the reactions of chemical digestion. Table below lists a few digestive enzymes, the organs that produce them, and their functions in digestion. Q: What speeds up the reactions of chemical digestion? Choices: - protein catalysts - electrical enzymes - stomach acids - digestive enzymes A:
**Answer**
digestive enzymes
(Question)
Answer the following question given this paragraph: Q: What is the process by which plants and animals increase in size? Choices: - reproduction - grafting - splicing - growth A:
(Answer)
growth