Answer the following question given this paragraph: About 13.7 billion years ago, the entire universe was packed together. Everything was squeezed into a tiny volume. Then there was an enormous explosion. After this "big bang," the universe expanded rapidly ( Figure below ). All of the matter and energy in the universe has been expanding ever since. Scientists have evidence this is how the universe formed. One piece of evidence is that we see galaxies moving away from us. If they are moving apart, they must once have been together. Also, there is energy left over from this explosion throughout the universe. The theory for the origin of the universe is called the Big Bang Theory . Q: The once compressed universe expanded rapidly after what nicknamed event billions of years ago? Choices: - big explosion - good bang - big bust - big bang A:
big bang
Answer the following question given this paragraph: Mutations, a change in the DNA or RNA sequence, may have no effect, may be beneficial or may be harmful. There are numerous ways that the genetic information can be changed. Some of these changes can be inherited. In multicellular organisms, mutations can be subdivided into germline mutations , which can be passed on to descendants, and somatic mutations , which cannot be transmitted to the next generation. Germline mutations change the DNA sequence within a sperm or egg cell, and therefore can be inherited. This inherited mutation may result in a class of diseases known as a genetic disease. The mutation may lead to a nonfunctional protein, and the embryo may not develop properly or survive. Somatic mutations may affect the proper functioning of the cell with the mutation. During DNA replication, the mutation will be copied. The two daughter cells formed after cell division will both carry the mutation. This may lead to the development of many cells that do not function optimally, resulting a less than optimal phenotype. Various types of mutations can all have severe effects on the individual. These include point mutations, framehift mutations and chromosomal alterations. Keep in mind, some mutations may be beneficial or have no effect. Mutations that have no effect will not affect the expression of the gene or the sequence of amino acids in an encoded protein. Q: What do you call a change in the dna or rna sequence? Choices: - degradation - adaptation - infection - mutation A:
mutation
Q: Answer the following question given this paragraph: Prokaryotic cells grow to a certain size. Then they divide by binary fission. This is a type of asexual reproduction. Q: Prokaryotic cells grow to a certain size and then they divide by which process? Choices: - linear fission - binary fusion - budding - binary fission A:
A: binary fission
Question: Answer the following question given this paragraph: Atomic radii have been measured for elements. The units for atomic radii are picometers, equal to 10 -12 meters. As an example, the internuclear distance between the two hydrogen atoms in an H 2 molecule is measured to be 74 pm. Therefore, the atomic radius of a hydrogen atom is . Q: What unit are atomic radii typically measured in? Choices: - sporozoans - radons - powers - picometers A:
Answer: picometers
*Question*
Answer the following question given this paragraph: After spermatids form, they move into the epididymis to mature into sperm, like the one shown in Figure below . The spermatids grow a tail and lose excess cytoplasm from the head. When a sperm is mature, the tail can rotate like a propeller, so the sperm can propel itself forward. Mitochondria in the connecting piece produce the energy (ATP) needed for movement. The head of the mature sperm consists mainly of the nucleus, which carries copies of the father's chromosomes. The part of the head called the acrosome produces enzymes that help the sperm head penetrate an egg. Q: After spermatids form, they move where to mature into sperm? Choices: - into the prostate - into the volaris - into the vans deferens - into the epididymis A:
**Answer**
into the epididymis
(Question)
Answer the following question given this paragraph: From the human point of view, natural resources can be classified as renewable or nonrenewable. Q: What are the two classifications of natural resources? Choices: - renewable and reusable - productive and nonrenewable - recyclable and reversible - renewable and nonrenewable A:
(Answer)
renewable and nonrenewable