SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Bio 101: Harvard
Start Test
Study First
Subjects
:
science
,
biology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Fluctuating temperatures
Convection
Intracellular fluid
Heterotherms
Selfing
2. Allow individual genes - organelles or fragments of genomes to move horizontally from one lineage to another (virus take genes from one host to new host or mitochondria/chloroplasts)
Lateral gene transfer
Heterochrony
Antidiuretic hormone
Stabilizing Selection
3. Glycogen hodrolysis in liver
Glycogenolysis
Ectotherms
Population
Absorbed triglycerides
4. What organisms look like and how they behave
Phenotype
Fitness
Psuedogenes
Exon shuffling
5. 1. No mutation 2. No differential selection among genotypes 3. There is no gene flow 4. Population size is infinite 5. Mating is random
Muscle tissue
Silent substitution
Hardy Weinberg equilibrium
Exon shuffling
6. Releases fatty acids to diffuse into cells of the body - some used during absorptive phase for energy
Founder effect
Heterotherms
Macroevolution
Lipoprotein lipase
7. Neurons (generate and conduct electrical signals) and glial cells (release chemical signals)
Ketones
Basal Metabolic Rate
Nervous tissue
Metabolism
8. Bicarbonate ions (Co2+H2O= h2Co3= H+ + HCO3-) Co2 removed by lungs - H+ removed by urine
Orthologs
Osmoconformers
Intrasexual Selection
Major blood buffer
9. Rate at which an organism uses energy to power these reactions
Obesity
Conduction
Connective tissue
Metabolic rate
10. Two or more homologous genes found in different species
Individuals do not evolve
Genetic Drift
Orthologs
Basal Metabolic Rate
11. Blood into dialyzer (acts as filtrater) to create artificaill countercurrent exchange system
Hemodialysis
Osmoregulators
Nervous tissue
Osmolarity
12. Shifts mean towards one extreme (positive selection) ie long horned cows
Directional selection
Obesity
Leptin
Alleles
13. Human based selection (ie cows with more milk or high fat content)
Glucose Transporters
Genetic Drift
Artificial directional selection
Gene duplication
14. Individuals interacting at a given time and place
Connective tissue
Loop of Henle
Intrasexual Selection
Population
15. Human based selection (ie cows with more milk or high fat content)
Artificial directional selection
Loop of Henle
Honest signal
Lateral gene transfer
16. Secrete penicillin - toxins - K+ and H+
Three theories of Darwin
Secretion
Malpighian tubules
Evaporation
17. Liver converts no carbs into glucose (lipolysis-fatty acids and glycerol to glucose)
3 germ layers
Gluconeogenesis
Adaptation
Kidney
18. Change in a single nucleotide in a DnA sequence
Metanephridia
Diploid
Nucleotide Substitution
Population density
19. Secrete penicillin - toxins - K+ and H+
Endemic
Three theories of Darwin
Sexual selection
Secretion
20. Heat transfer when two objects come into direct contact (icepack on sprained ankle)
Conduction
Lower critical temperature
Silent substitution
Epithelial tissue
21. Like in butterfly - often give organism an survival and mating advantage-- however homozygotes will always exist as children of heterozygotes
Absorbed amino acids
Cold fish vs hot fish
Heterozygote populations
Disruptive selection
22. Amount of fuel used during a given time to power all of its metabolic requirement - = MR - sometimes appears as heat
Allele frequency formula
Energy expenditure
Muller's Ratchet
Genetic Drift
23. Region where species are found (densities are zero elsewhere)
Metabolic rate
Hemodialysis
Positive feedback
Geographic Range
24. Minerals that carry electrical charges that help maintain the body's fluid balance - imbalance can alter membrane potentials/disrupt cell activities
Electrolytes
Energy expenditure
Mutation
Hemodialysis
25. Product of protein and nucleic acid degradation: 1. Ammonia (NH3) - 2. Urea (lose lots of water)-humans are ureotelic - 3. Uric acid (lose little water)
Nitrogenous wastes
Microevolution
Osmoconformers
Muller's Ratchet
26. Asexual 1. Doesn't need a mate 2. Maintains adaptive genes 3. All kids asexual (able to reproduce) V.S. Sexual 1. Repairs damaged DNA 2. Elimination of deleterious mutations (asexual makes exact copies) 3. Greater genetic variation (genetic combinati
Silent substitution
Sexual recombination vs asexual reproduction
Size in BMR
Connective tissue
27. Does not change the encoded amino acid. Occurs at highest rate (also synonymous substitution)
Lower critical temperature
Silent substitution
Vestigial structures
Microevolution
28. 1. Most variation caused by neutral changes - do not confer advantage or disadvantage. 2. Since netural mutation is constant - can be used as a molecular clock to calculate divergence btwn species. 3. Neutral mutations not dependent on population siz
Positive feedback
Osmoregulators
Malpighian tubules
Neutral Theory
29. Lack of water --> lack of body water - compromises the circulatory system and regulation of body temperature
Gluconeogenesis
Dehydration
Non shivering thermogensis
Honest signal
30. A sudden change to population that causes large changes in allele frequencies over time ie population bottleneck
Gluconeogenesis
Antidiuretic hormone
Basal Metabolic Rate
Genetic Drift
31. Cells or organisms having two sets of chromosomes
Basal Metabolic Rate
Diploid
Absorptive phase
Absorbed amino acids
32. Humans do this through clothing
Sexual selection
Thermal insulation
Brown fat
Glomerulus
33. Most of the water in an animal's body located within its cells
Artificial selection
Intracellular fluid
Ammonotelic
Geographic Range
34. BMI of 30 or greater
Natural selection
Silent substitution
Obesity
Stabilizing Selection
35. Stable temperatures
Homeotherms
Deleterious
Lateral gene transfer
Excretory system functions
36. Individuals interacting at a given time and place
Epithelial tissue
Geographic Range
Population
Brown fat
37. Creates new genes by inserting exons and flanking introns into a different gene sequence - there by introducing a new domain in the gene product
Metanephridia
Quantitative
Neutral Theory
Exon shuffling
38. A process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus - which results in the production of sex cells
Fitness
Metabolism
Artificial selection
Meiosis
39. The differential survival and reproduction of individuals in a population based on variation in their traits
Thermal insulation
Natural selection
Disruptive selection
Vestigial structures
40. Low glucose level in blood
Hypoglycemia
P53
Ketones
Fever
41. 1. Regulate volume of fluid in body 2. regulate osmolarity - 3. Maintain Ca2+ - H+ - NA+ (ionic regulation) 4. eliminate nitrogenous wastes produced by protein and nucleic acid catabolism (URINE)
Loop of Henle
Psuedogenes
Nitrogenous wastes
Excretory system functions
42. A sudden change to population that causes large changes in allele frequencies over time ie population bottleneck
Silent substitution
Radiation
Thermal insulation
Genetic Drift
43. Does not change the encoded amino acid. Occurs at highest rate (also synonymous substitution)
Silent substitution
Disruptive selection
Heterochrony
Genetic structure
44. The differential survival and reproduction of individuals in a population based on specific traits chosen by humans
Post absorptive stage
Tubule
Artificial selection
Nucleotide Substitution
45. Proportion of allele in population
Allele frequency
Acclimatization
Epithelial tissue
Genotype frequency
46. Neurons (generate and conduct electrical signals) and glial cells (release chemical signals)
Psuedogenes
Nervous tissue
Dehydration
Quantitative
47. Development of offspring from unfertilized eggs
Dobzhansky Muller Model
Vasa recta
Genome size
Qualitative
48. Made by pancreas - binds to cell surface receptor and stimulates singaling pathway - faciliates glucose diffusion into cell (secretion rises when blood glucose rises - eating - or parasympathetic stimulation ie negative feedback)
Alleles
Insulin
Absorbed amino acids
Disruptive selection
49. Refers to all the bodily activities and chemical reactions in an organism that maintain life
Sexual selection
Energy expenditure
Genome size
Metabolism
50. One loci
Nonsynonymous vs synonymous
Sexual recombination vs asexual reproduction
Heterochrony
Qualitative