Answer the following question given this paragraph: When light hits rods and cones, it causes chemical changes. The chemical changes start nerve impulses. The nerve impulses travel to the brain through the optic nerve . Q: Through what does the nerve impulses travel to the brain? Choices: - abducent nerve - trochlear nerve - oculomotor nerve - optic nerve A:
optic nerve
(Question)
Answer the following question given this paragraph: Heat from a wood fire can boil a pot of water. If you put an egg in the pot, you can eat a hard boiled egg in 15 minutes (cool it down first!). The energy to cook the egg was stored in the wood. The wood got that energy from the Sun when it was part of a tree. The Sun generated the energy by nuclear fusion. You started the fire with a match. The head of the match stores energy as chemical energy. That energy lights the wood on fire. The fire burns as long as there is energy in the wood. Once the wood has burned up, there is no energy left in it. The fire goes out. Q: How does the sun generate energy? Choices: - atomic division - matter multiplication - certain fusion - nuclear fusion A:
(Answer)
nuclear fusion
Ques: Answer the following question given this paragraph: Before Darwinian evolution became the prevailing theory of the field, French naturalist Jean-Baptiste Lamarck theorized that acquired traits could, in fact, be inherited; while this hypothesis has largely been unsupported, scientists have recently begun to realize that Lamarck was not completely wrong. Visit this site (http://openstaxcollege. org/l/epigenetic) to learn more. Heritability is the fraction of phenotype variation that can be attributed to genetic differences, or genetic variance, among individuals in a population. The greater the hereditability of a population's phenotypic variation, the more susceptible it is to the evolutionary forces that act on heritable variation. The diversity of alleles and genotypes within a population is called genetic variance. When scientists are involved in the breeding of a species, such as with animals in zoos and nature preserves, they try to increase a population's genetic variance to preserve as much of the phenotypic diversity as they can. This also helps reduce the risks associated with inbreeding, the mating of closely related individuals, which can have the undesirable effect of bringing together deleterious recessive mutations that can cause abnormalities and susceptibility to disease. For example, a disease that is caused by a rare, recessive allele might exist in a population, but it will only manifest itself when an individual carries two copies of the allele. Because the allele is rare in a normal, healthy population with unrestricted habitat, the chance that two carriers will mate is low, and even then, only 25 percent of their offspring will inherit the disease allele from both parents. While it is likely to happen at some point, it will not happen frequently enough for natural selection to be able to swiftly eliminate the allele from the population, and as a result, the allele will be maintained at low levels in the gene pool. However, if a family of carriers begins to interbreed with each other, this will dramatically increase the likelihood of two... Q: The diversity of alleles and genotypes within a population is known as genetic what? Choices: - group - density - variable - variance A:
Ans: variance
(Q).
Answer the following question given this paragraph: The tRNA structure is a very important aspect in its role. Though the molecule folds into a 3-leaf clover structure, notice the anticodon arm in the lower segment of the molecule, with the amino acid attached at the opposite end of the molecule (acceptor stem). It is the anticodon that determines which codon in the mRNA the tRNA will bind to. Q: What determines which codon in the mrna the trna will bind to? Choices: - gene - amnion - exon - anticodon A:
(A).
anticodon
Ques:Answer the following question given this paragraph: frequent algal blooms d. little or no vegetation 12. Which of the following is an example of a weather event? a. The hurricane season lasts from June 1 through November 30. The amount of atmospheric CO2 has steadily increased during the last century. A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999. Deserts are generally dry ecosystems having very little rainfall. Which of the following natural forces is responsible for the release of carbon dioxide and other atmospheric gases? a. the Milankovitch cycles b. volcanoes c. solar intensity d. burning of fossil fuels. Q: Deserts are generally dry ecosystems having very little what? Choices: - heat - snowfall - mountains - rainfall A:

Ans:rainfall
Ques: Answer the following question given this paragraph: Carbonated beverages contain carbon dioxide gas that is dissolved in solution. Do you think a carbonated beverage is a mixture or a pure substance? Explain. Q: What gas, that is dissolved in solution, is used in carbonated beverages? Choices: - phosphorus dioxide - carbon monoxide - hydrogen peroxide - carbon dioxide A:
Ans:
carbon dioxide