What substance combines with oxygen in cellular respiration? A) fat B) sugar C) water D) carbon dioxide
Which of the following is an example of an eccentric contraction? A. DANCE MOVE b. INJURING A DOMINANT MUSCLE C. BICEP CURL D. SLOWLY PUTTING A HEAVY OBJECT DOWN
Which of the following best explains the importance of Earth’s crust to living organisms? a.The continental crust allowed the evolution of life on land. b. The crust provides raw materials necessary for life. c. The crust allowed the formation of fossil fuels. d. The rock cycle recycles sedimentary rocks formed from animal shells.
Which stem cells are capable of the most limited differentiation? a.) adult stem cells b.) amniotic fluid stem cells c.) embryonic stem cells d.) somatic stem cells?
Which of the following is an ozone depleting substance (ODS)? a. ultraviolet radiation b. chlorofluorocarbon (CFC) c. biogeochemical cycle d. none of the above
Weather patterns are MAINLY caused by the.. A. rotation of the Earth B. uneven heating of the Earth C. Gravitational pull of the moon D. distance of the Earth's from the Sun
Which of the following populations is more likely to reach Hardy–Weinberg equilibrium? large population residing on an isolated island small population, reproductively isolated, branched off from a larger population large population residing in an earthquake–prone city
Which of the following does not occupy the bottom of an energy pyramid? a. phytoplankton b. trees c. grass d. zooplankton
Channels within the structure of the cell membrane are composed of A) carbohydrates. B) disaccharides. C) phospholipids. D) proteins.
Ecology that focuses on dynamic changes occurring in one species is _____ ecology. 1) population 2) applied 3)systems
4) which of the following is a true statement about sexual vs. asexual reproduction?; a) asexual reproduction, but not sexual reproduction, is characteristic of plants and fungi.; b) in sexual reproduction, individuals transmit 50% of their genes to each of their offspring.; c) in asexual reproduction, offspring are produced by fertilization without meiosis.; d) sexual reproduction requires that parents be diploid.; e) asexual reproduction produces only haploid offspring.
Which of the following is an unsegmented worm with a pseudocoelom. A. sponge B. cnidarian C. arthropod D. roundworm
A pea plant exhibits a recessive trait. Which statement is most likely true about the plant? A. The plant is identical to its parent plant. B. The plant has different alleles for the gene that codes for the trait. C. The plant has two identical alleles for the gene that codes for the trait. D. The plant does not have the same genes for the trait as its parent plant.
Which of the following statements about human society and limiting factors is true? a. Modifications made to the environment to reduce the impact of limiting factors can cause disruption to the natural balance of an ecosystem. b. Humans cannot modify their environment to adapt it to their needs. c. Humans can completely overcome the factors that limit population size. d. Limiting factors are of no concern to human society, because they do not affect human populations.
Analyzing data in graphs or charts allows you to? A -make observations B -make predictions C -run new experiments D -create new tools BEST answer
Identify the roles played by human gut bacteria. identify the roles played by human gut bacteria. ulcers are caused by the acid-tolerant bacterium helicobacter pylori. the human appendix houses mutualistic bacteria that digest cellulose. human gut bacteria synthesize all essential vitamins required by humans.
In order for individuals to have trust in a relationship, they have to be honest with one another. t or f
Smooth muscle, a type of specialized muscle cell, functions in which process? 1. food digestion 2. skeletal movement 3. pumping of blood 4. heart contraction
Which of the following makes the best analogy to describe the movement of energy in an ecosystem? A. pool B. lake C. river D. pond