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The "Big bang theory" explains the origins of universe. Before there could be life on Earth, there required to be a planet and universe to consist of that life. Edwin Hubble discovered that the universe is expanding. From this rate of expansion, scientists were able to find that the universe started from a single point of compressed gasses 15 billion years ago. The explosion of that point of compressed gas outward is "Big bang theory". From that explosion stars were formed and over time space debris and eventually planets
The "Primordial soup" includes the mixture of elements and gases which are thought to have started life on the Earth.
Describe Miller and Urey's experiment.
Which lower vascular plant group once had tree-sized individuals (ca. 250- 300 mya) in swampy areas; their fossilized remains became a significant part of most coal deposits in the US.
What is an animal? Include in your answer how animals are differentiated from other life forms. In particular, describe the similarities and differences between volvocine protozoa, members of the Phylum Porifera, and members of the Phylum Cnidaria th..
The trend in the U.S. is having children later in life than previous generations. What effects may this trend have on the incidence of late-acting dominant lethal alleles in the population.
Describe why digestion of lipids is difficult for digestive enzymes? What should happen to fats or lipids in order for digestion to be complete.
What is the possibility that they will have a daughter that has the disease. Vitamin-D resistant rickets is a sex-linked dominant trait.
Briefly explain why this mating produces a triploid individual. Why can mitosis proceed normally in triploid cells, but meiosis cannot.
The Neurospora cross was made between a strain that carried mating type A and the mutant allele arg-1(arg) and another strain the carried mating-type a and the wild type arg-1 (+)gene
If humans and shrews shared the common ancestor roughly 80 million years ago, ignoring multiple substitutions at the same site, how several amino acid differences have to be expecting to see between a human and shrew Fibrinogen B sequence.
Why is the frequency of the sickle-cell gene different in North America versus Africa. Now what is your definition of male and female? This is a 26-year-old female with congenital adrenal hyperplasia. What do you say.
When examining geology of a region for potential useable aquifers, what characteristics or factors would you consider? Also, taking into account certain natural and human factors, which areas would you avoid.
What changes took place from one group to another. What advantages did each progressive group have over the last? Will you categorize each as more sucessful than the last.
What offspring phenotypes would you expect from mating between a 15-cm and 30-cm pig. How many pairs of genes are regulating the tail length character? (Hint: count the phentotypic classes, or find out the sum of the ratios of the classes)
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