[1] Learning Catalytics Flashcards
Which least describes the practice of science?
A. Science is typically performed alone in the lab.
B. Data are typically collected by teams of students and experienced researchers.
C. Scientists typically reexamine conclusions or repeat experiments from other large, famous labs.
D. Scientists who work in forests studying ecology often collaborate closely with geneticists who work only in the lab.
E. The practice of science results in a discovery that lends new insight, and technology involves how this new insight will be applied to develop a new drug.
A. Science is typically performed alone in the lab.
The actions of an organism are based on activities of ___.
cells
A group of organisms from one species living together in a given environment is referred to as ___.
a population
What is the correct order from smallest to largest?
A. cell, organelle, organ system, community, ecosystem
B. molecule, organism, population, community, biosphere
C. molecule, cell, tissue, ecosystem, community
D. organelle, cell, population, biosphere, ecosystem
E. cell, organ, population, ecosystem, community
B. molecule, organism, population, community, biosphere
DNA is made up of deoxyribose sugar, phosphate (a functional group), and ___.
A. adenine
B. cytosine
C. guanine
D. thymine
E. All of the choices are correct.
E. All of the choices are correct.
The entire set of genetic information in a cell or an organism is referred as a ___.
A. chromosome
B. chromatin
C. gene
D. genome
D. genome
Which scientific study would represent an example of a systems biology approach?
A. measuring the effect of an invading insect that eats oak leaves on the numbers of oak trees and on any subsequent changes in the number and types of decomposer fungi in the soil
B. discovering the structure of an enzyme that is important in digestion of protein
C. comparing the microscopic structure of leaves of two different species of magnolias
D. measuring the reproductive rate of emperor penguins during exceptionally warm and exceptionally cold years
E. comparing the DNA sequence of two closely related plants and inferring their evolutionary histories
A. measuring the effect of an invading insect that eats oak leaves on the numbers of oak trees and on any subsequent changes in the number and types of decomposer fungi in the soil
Which statement about the energy radiated from the ears of a rabbit cooling itself is accurate?
A. The original source of the energy was the sun.
B. The energy will be recycled through the ecosystem.
C. The radiated energy will be trapped by predators of the elephants.
D. More energy is radiated in cold conditions than in hot conditions.
E. More energy is radiated at night than during the day.
A. The original source of the energy was the sun.
Which example least shows that form and function are related?
A. Cells in the intestinal lining of vertebrates have many small projections that increase the surface area for absorption of nutrients
B. Plants that live in dry areas have large roots for absorbing water.
C. Seeds that are dispersed by wind are very light.
D. Fish that swim rapidly have bodies that are streamlined.
E. None of the choices is correct.
E. None of the choices is correct.
Which kingdom comprises mostly unicellular eukaryotes?
A. Archaea
B. Protista
C. Fungi
D. Plantae
E. Animalia
B. Protista
Imagine that you have just discovered a new multicellular, microscopic organism that swims in ponds. It is propelled by cilia. What can you say about the evolutionary relationships of this organism?
A. The presence of cilia shows that it is more closely related to Paramecium than to humans.
B. The presence of cilia shows that it shares a common ancestor with Paramecium and humans.
C. It is probably closely related to pond algae.
D. It is probably most closely related to prokaryotes.
E. The presence of cilia demonstrates the diversity, but not the unity, of life.
B. The presence of cilia shows that it shares a common ancestor with Paramecium and humans.
