FREE BIOLOGY AND STUDY GAMES ABOUT BIOLOGY

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FREE BIOLOGY AND STUDY GAMES ABOUT BIOLOGY

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -69 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: 6 kingdoms

Answer:

animalia, eubacteria, protista, fungi, plantae, archaebacteria Question 2: T/F Genera place withing a family should be less closely related to one another than to memebers of any other family

Answer:

false Question 3: T/F Early efforts of naming organims: Usually english

Answer:

false Question 4: How do similarities in genes show that humans and yeast shar a common ancestry?

Answer:

Humans have a gene that codes for myosin, a protein found in our muscles. A gene in yeast codes for a myosin protein

Question 5: Probles faced by taxonomists who rely on body structure comparisons?

Answer:

Organisms that are quite dif from eachother evolve similar body structures

Question 6: Largest taxonomic category, smallest

Answer:

kingdom, species

Question 7: 3 domains

Answer:

bacteria, archaea, eukarya Question 8: Large scale evolutionary changes that take place over long periods of time

Answer:

macroevolution

Question 9: Archae

Answer:

unicellular Question 10: What are some reasons rapid evolution may occur after long peridos of equlibrium?

Answer:

Small population becomes isolated from main part of population, small group of organisms migrates to new environment, to fill available niches Question 11: Why did scientists place bacteria in their own kingdom, the Monera?

Answer:

scientists realized tha bacteria lack nuclei, mitochondria, and chloroplast found in other forms of life

Question 12: Protista

Answer:

slime molds and giant kelp

Question 13: 2-word naming system developed by Linnaeus

Answer:

binomial nomenclature Question 14: A model that uses DNA comparisons to estimate the length of time that 2 species have been evolving independently

Answer:

molecular clock Question 15: Why do biologists use a classifications system to study the diversity of life?

Answer:

to group in a logical manner

Question 16: T/'F All members of the domain bacteria are parasites

Answer:

false Question 17: Why are there many molecular clocks in a genome insteat of just one?

Answer:

some genes accumulate mutations faster than some others

Question 18: Patterns of Macroevolution

Answer:

1Mass extinctions 2Adaptive Radiation 3Convergent evolution 4Coevolution 5Punctuated equilibrium 6Changes in developmental genes

Question 19: Ex. of convergent evolution

Answer:

sharks fin and dolphins limb

Question 20: What traits did Linnaeus consider when classifying organism?

Answer:

structures of dif organisms and details of anatomy

Question 21: What type of organisms were later place in the kingdom Protista?

Answer:

microorganisms Question 22: T/F Early efforts of naming organisms: Often described detailed physical characteristics of a species

Answer:

true

Question 23: Possible causes of mass extinction?

Answer:

Huge asteroid caused the cretaceous extinction, large volcanoes, continents changing position, sea levels changing

Question 24: How do biologists now group organisms into categories?

Answer:

Biologists now group organisms into categories that represent lines of evolutionary descent, not just physical similarities Question 25: T/F Early efforts of naming organisms: It was difficult to standardize the names

Answer:

true

Question 26: Process by which unrelated organisms come to resemble one another

Answer:

convergent evolution

Question 27: What led to adaptive radiation of mammals?

Answer:

disappearance of dinosaurs

Question 28: Eukarya

Answer:

have nucleus