An ecological relationship between organisms of different species that are in direct contact can best be described as _____.
A.) symbiotic
B.) parasitic
C.) taxis
D.) mutualistic
E.) commensal
Answer: A.) symbiotic
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Pasteur's experiments proved that
A) Cells cannot survive in swan necked flasks B) In order to grow, cells need to be supplied with oxygen C) Spontaneous generation can only occur if nutrient broth is left open to the environment D) Sterilizing nutrient broth prevents spontaneous generation E) Pre-existing cells present in the air can grow in sterilized nutrient broth
The chromosome must be ___________ in order to fit into the bacterial cell.
A. supercoiled by topoisomerases B. supercoiled around histone proteins C. organized into loop domains by topiosomerases D. compacted into a nucleosome E. both organized into loop domains and supercoiled by topoisomerases
During glycolysis, ATP is produced by oxidative phosphorylation
a. True b. False
A population is:
A) a group of different species that share common features. B) all the different species that live in a defined geographic area at the same time. C) all the members of a species that live in a defined geographic region at the same time. D) a group of organisms that can successfully interbreed in nature but do not interbreed with other such groups.