A) obtaining nutrients by absorbing them from the environment
B) obtaining nutrients by ingesting other organisms
C) converting light energy to chemical energy in the form of sugars
D) living in extreme environments like boiling hot springs
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verified
Multiple Choice
A) a biological system
B) a biosphere
C) a biological community
D) a population
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verified
Multiple Choice
A) an ecosystem.
B) a community.
C) a population.
D) a taxonomic domain.
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verified
Multiple Choice
A) an ecosystem
B) the biosphere
C) a biological community
D) a population
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verified
Multiple Choice
A) He documented examples of organisms that had evolved over time.
B) He proposed a mechanism to explain the process of evolution.
C) He explained the relationship between genes and evolution.
D) He observed that individuals in a population generally displayed variation for a number of traits.
E) He suggested that survival depends upon competition.
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verified
Multiple Choice
A) mutation frequency
B) production of more offspring than can survive
C) descent with modification
D) the accuracy of the fossil record
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verified
Multiple Choice
A) the energy of motion
B) carbon dioxide and water
C) chemical energy
D) oxygen
E) kinetic energy
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Multiple Choice
A) heat → chemical → heat
B) light → heat → chemical
C) light → chemical → heat
D) chemical → heat → light
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verified
Multiple Choice
A) biological community.
B) order.
C) family.
D) population.
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verified
Multiple Choice
A) ecosystems → biosphere → communities → populations → organisms
B) communities → populations → organisms → ecosystems → biosphere
C) biosphere → communities → populations → ecosystems → organisms
D) biosphere → ecosystems → communities → populations → organisms
E) biosphere → ecosystems → populations→ communities → organisms
Correct Answer
verified
Multiple Choice
A) They can correct each other's approach to make it truly scientific.
B) Robust and critical discussion between diverse groups improves scientific thinking.
C) Scientists need to exchange their ideas with other disciplines and cultures so that all groups are in agreement regarding the course of future research.
D) This is another way of ensuring that everyone gets the same results.
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verified
Multiple Choice
A) animal
B) plant
C) archaea
D) fungi
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Multiple Choice
A) tissues
B) organs
C) organelles
D) cells
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verified
Multiple Choice
A) Theories are hypotheses that have been proved.
B) Hypotheses are guesses;theories are correct answers.
C) Hypotheses usually are relatively narrow in scope;theories have broad explanatory power.
D) Theories are proved true;hypotheses are often contradicted by experimental results.
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verified
Multiple Choice
A) If a banana is not ripe,then an ape will not eat it.
B) Numerous different species live in sunny parts of an ecosystem;therefore,they are all photosynthetic.
C) Hundreds of cultures of a unicellular alga are incubated in the presence of light,and in all of the samples the cells congregate on the side of the culture toward the light.Therefore,the alga is phototactic (attracted to light) .
D) If two species are members of the same genus,then they are more similar to each other than they are to members of a different genus.
Correct Answer
verified
Multiple Choice
A) It must generate quantitative data.
B) It must explain a large body of specific observations.
C) It must lead to testable predictions.
D) It must be able to be proven true.
Correct Answer
verified
Multiple Choice
A) proceeds slowly enough that a scientist can make careful records of the results.
B) tests experimental and control groups in parallel.
C) is repeated many times to make sure the results are accurate.
D) keeps all variables constant.
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verified
Multiple Choice
A) a reproductively sterile individual who never falls ill
B) an organism that dies after five days of life but leaves 10 offspring,all of whom survive to reproduce
C) a male who mates with 20 females and fathers one offspring
D) an organism that lives 100 years and leaves two offspring,both of whom survive to reproduce
E) a female who mates with 20 males and produces two offspring who live to reproduce
Correct Answer
verified
Multiple Choice
A) Chimpanzees typically travel together in small groups.
B) Pairs of animals take turns grooming each other.
C) Young chimpanzees play games in the trees and on the ground.
D) Mothers and their infants typically nap for two to three hours each afternoon.
Correct Answer
verified
Multiple Choice
A) emergent properties
B) descent with modification
C) DNA structure and function
D) natural selection
Correct Answer
verified
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