Ultimate Biology Study Guide - Questions & Answers

scientists understand that viruses have advanced greatly in the last 50 years. which statement gives evidence that a virus is non living.
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what type of cell would affect the organism's offspring if a mutation occurred
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The lines on the position-time graph show the velocities of different vehicles. Which line represents a vehicle moving at constant velocity?
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a triploid cell contains three sets of homologous chromosomes. which fo the follwong describes the hcomromse in a triploid cell where n
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what difference, if any, would you expect in the rate of cellular respiration in the germinating peas in vial
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write out the net equation for photosynthesis of one molecule of glucose. what molecules are oxidized, and what molecules are reduced?
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photosynthesis and cellular respiration are complementary reactions: the products of one are the reactants of the other. true or false
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index fossils assist scientists in assessing the age of fossils for which type of fossil dating method? a. biostratigraphic dating b. dendrochronology c. cultural dating d. radiocarbon dating
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why do modern humans have misaligned teeth? group of answer choices the development of agriculture a diet of harder foods the development of larger jaws an increased emphasis on foraging food
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the ability for a person to taste ptc is a dominant genetic trait (t), while the inability to taste ptc is recessive (t). a. if a man is heterozygous for that trait, what is his genotype?
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how does the masticatory-functional hypothesis explain the observed craniofacial changes in conjunction with the shift to agriculture? a. the grit in agricultural foods resulted in higher rates of tooth wear, and the craniofacial bones had to compensate. b. agriculture caused populations to move more, and new populations with different-shaped heads moved into different areas. c. as individuals consumed softer foods, this reduced the size of the chewing muscles, which led to changes in the underlying bone. d. consumption of agricultural foods caused brain size to increase, which led to various craniofacial changes.
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you have generated antibodies that recognize the extracellular domain of the ca2 -pump. adding these antibodies to animal cells blocks the active transport of ca2 from the cytosol into the extracellular environment. what do you expect to observe with respect to intracellular ca2 ? group of answer choices ca2 -pumps in vesicle membranes will keep cytosolic calcium levels low. ca2 -pumps in the golgi apparatus will keep cytosolic calcium levels low. ca2 -pumps in the endoplasmic reticulum membrane will keep cytosolic calcium levels low. ca2 concentrations in the cytosol will increase at a steady rate.
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which of the following are examples of events that could cause genetic drift in a population? choose one or more: a. annual spring flooding on the mississippi river b. a 1,000-year shift in climate that favors drought-resistant plant species in north america c. a group of wolves leaving their pack to create a new pack d. eruption of a volcano e. the appearance of a new allele in a population that helps individuals with that trait survive and reproduce better than other individuals g
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the heritability for egg weight in a group of chickens on a farm in maine is 0.95. which of the following statements is incorrect regarding this heritability value? group of answer choices based on this observation, it is appropriate to conclude that the heritability for egg weight in a group of chickens on a farm in upstate new york is also high. the environment in maine has very little effect on phenotypic variation on this trait. nearly all of the phenotypic variance for this trait in this group of chickens is due to genetic variance. this group of chickens is suitable for selective breeding.
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adaptation in sexual populations is facilitated by: linking beneficial mutations that originated in distinct lineages. unlinking of deleterious and beneficial mutations. genetic variation arising from new combinations of alleles. g
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what kind of entity is a lichen? an association between a fungus and a brown alga an association between a multicellular protist related to the brown algae and a bacterium an association between a fungus and cyanobacteria or green algae an association between a bryophyte and a fungus
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using information from the morgan's experiments, what fruit flies (genotypes and phenotypes) would you mate to determine the sequence of the body-color, wing-size, and eye-color genes on the chromosome?
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which statement is true about parasites? they can only live on the surface of their hosts. they exhibit commensalism toward their hosts. they are predators, which are usually larger than their prey. they often have simple life cycles. they can alter the behavior of their hosts.
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which of the following will occur after ovulation? group of answer choices the corpus luteum prepares to become a corpus albicans. the corpus luteum secretes estrogen only. the endometrium enters its secretory phase. the secretion of anterior pituitary gonadotropins is enhanced.
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Autobiographical memory research shows that a person's brain is more extensively activated when viewing photos
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The bioavailability of calcium depends in part on the age of the person consuming the calcium-containing food.
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Insert the correct terms or phrases into the following sentences that compare DNA replication with transcription. Use this word bank: 3'-hydroxyl group, 5'-Phosphate group, DNA, DNA polymerase, DNA replication, Ligase, RNA, RNA polymerase, tRNA, transcription. In transcription, the goal is synthesis of _________________________ In DNA replication, the goal is synthesis of _______________________ RNA polymerase and primase both add nucleotides to a _____________________ During ______________________, both strands of the DNA will function as a template. During ______________________, only one strand of the DNA will function as a template.
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the pure functional structure is appropriate for achieving internal efficiency goals in the stable environment (True or False)
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a group of organisms that can breed and produce fertile offspring is known as a ...
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