Which statement best describes the cell theory?
a. All living organisms grow and develop.
b. All living organisms respond to stimuli.
c. All living organisms are composed of basic units called cells.
d. All living organisms can move from one place to another in order to find food or to escape predators.
e. All living organisms can form a population of organisms that is able to adapt to the environment
c
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Based on the following classification scheme, which two organisms are most closely phylogenetically related? Why?
What will be an ideal response?
How long ago did the first gymnosperms evolved?
A. 360 million years ago B. 360 thousand years ago C. 36 million years ago D. 36 thousand years ago
Why is it unlikely that genetically engineered strains of bacteria would pose a threat to the
environment? a. Genetically engineered bacteria cannot survive exposure to UV radiation. b. Genetically engineered strains of bacteria are strictly regulated, making accidental release unlikely. c. Genetically engineered strains of bacteria cannot survive exposure to oxygen. d. Genetically engineered strains of bacteria are poor competitors of wild strains. e. Genetically engineered strains of bacteria require supplemental nutrients to survive.
Which of the active transport types employs diffusion?
a. Antiport b. Symport c. Uniport and Antiport d. All types of active transport make use of some form of diffusion. e. Uniport