Biology, 12.07.2019 19:30 dfbernalloboguerrero
Amedical researcher has obtained a new strain of streptococcus bacteria. it has a generation time of 15 minutes. bacteria reproduce by binary fission, in which one bacterium becomes two bacteria. after one hour of culture, there are 2000 bacteria in her petri dish. what was the initial amount of bacteria in the petri dish
Answers: 1
Biology, 22.06.2019 01:50
Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules
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Biology, 22.06.2019 02:30
Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers
Answers: 3
Biology, 22.06.2019 04:00
Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them
Answers: 1
Biology, 22.06.2019 06:00
Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.
Answers: 1
Amedical researcher has obtained a new strain of streptococcus bacteria. it has a generation time of...
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