Bsc 108 Study guides, Class notes & Summaries

BSC 108 Exam #3 – Questions & Solutions (100%)

Formation of a new species is called - ️️speciation As a mechanism of evolution, natural selection can be most closely equated with - ️️unequal reproductive success What is NOT an example of natural selection? - ️️On a tree, leaves that grow in the shade are larger than those that grow in the sun Which of the following pairs of anatomical structures are homologous? - ️️bat wing and human arm A gene pool is - ️️All of the alleles in a population The smallest bio...

The structure of a strand of DNA. - Answer-it is a double helix, like a twisted ladder. the ladder rings are nucleotide subunits and they have a covalent bond to the sugar phosphate backbone (made of deoxyribose and a phosphate group) What are the nucleotide subunits? - Answer-adenine, guanine, cytosine, and thymine How are the subunits held together? - Answer-through a hydrogen bond What are the nucleotide subunits compliments? - Answer-Adenine and thymine cytosine and guanine How does D...

What is a photosynthetic autotroph? - Answer-An organism that makes its own food from inorganic ingredients. What is the fluid inside chloroplasts called? - Answer-Stroma What are the membranes inside chloroplasts called? - Answer-inner and outer membranes Write the overall equation for photosynthesis. - Answer-6CO2+6H2O→C6H12O6+6O2 What is the primary function of pigments in photosynthesis? Name the primary pigment used in photosynthesis. - Answer-Pigments absorb certain wavelengths. Th...

Domain Eukarya contains animals, plants, protists, and fungi. - True The process of keeping internal conditions constant is known as - Homeostasis The levels of biological organization, in order from least complex to most complex, are: biosphere, ecosystems, communities, populations, organisms, organ systems, organs, tissues, cells, atoms, molecules. - False A new species has been discovered. Individuals of this species are multicellular eukaryotes that obtain nutrients from decomposing or...

What is a photosynthetic autotroph? - An organism that makes its own food from inorganic ingredients. What is the fluid inside chloroplasts called? - Stroma What are the membranes inside chloroplasts called? - inner and outer membranes Write the overall equation for photosynthesis. - 6CO2+6H2O→C6H12O6+6O2 What is the primary function of pigments in photosynthesis? Name the primary pigment used in photosynthesis. - Pigments absorb certain wavelengths. They are the means by which the energ...

The scientific study of heredity is called ___________. a. heredity b. breeding c. genetics d. true-breeding - ️️c. genetics In DNA, the phosphate groups and the sugars are on the outside of the double helix. a. True b. False - ️️a. True Which of the following are potential problems with Genetically Modified (GM) crops and Transgenic plants. a. Crops carrying genes from other species might harm the environment. b. GM foods could be hazardous to human health. c. Tran...

What is a photosynthetic autotroph? - An organism that makes its own food from inorganic ingredients. What is the fluid inside chloroplasts called? - Stroma What are the membranes inside chloroplasts called? - inner and outer membranes Write the overall equation for photosynthesis. - 6CO2+6H2O→C6H12O6+6O2 What is the primary function of pigments in photosynthesis? Name the primary pigment used in photosynthesis. - Pigments absorb certain wavelengths. They are the means by which the energ...

BSC 108 EXAM 3 – QUESTIONS AND ANSWERS (A+)

BSC 108 Exam – Questions & Detailed Answers