57- A community includes all populations of different species in the same region. A= True B= False
58- The amount of blood pumped out of each ventricle in one minute is called a- stroke volume b- cardiac output c- cardiac reserve d- end diastolic volume
59- Who proposed mechanism of evolution in 1858 and provided evidence that present-day species had evolved from earlier ones and changed over times a- Lamarck, b- Lyell, c- Darwin d- Wallace. e- both c and d
60- Extremely cold, dry, and windy. Phytoplankton are primary producers are characteristics of; a- Polar ice biome, b- tundra, c- Taiga, d- temperate rain forest
61- Very cold and dry. Small plants. Ground remains frozen year-round, and animals have thick fur, are characteristics of. a- Polar ice biome, b- tundra, c- Taiga, d- temperate rain forest