List four characteristics of living things, and give an example to illustrate each
What will be an ideal response?
There are many correct answers. Some acceptable answers are: Living things are both complex and organized (cells have organelles with specific organization); living things respond to stimuli (plants grow toward light); living things maintain homeostasis (the human body maintains its body temperature); living things acquire and use energy (plants use photosynthesis); living things grow (animals grow during their lifetime); living things reproduce (organisms produce offspring); living things have the capacity to evolve (bacteria have evolved antibiotic resistance).
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Cellular membranes are mosaic and
A. fluid. B. rigid. C. symmetrical. D. highly permeable to large molecules. E. All of the choices are correct.
An ecologist that studies cycling of nutrients and the flow of energy between the biotic components of
an ecological community and the abiotic environments is a(n)______.
a. behavioral ecologist d. ecosystem ecologist b. population ecologist e. organismal ecologist c. community ecologist
A small wooded area was cleared for a new building, but then the builders went bankrupt. Over the ensuing years, plants and animals moved back into the plot in a process called ________
A) climax community B) biological magnification C) secondary succession D) primary succession
A nucleotide is composed of a(n) _____.
a. glycerol, a nitrogen-containing base, and a five-carbon sugar b. amino group, a nitrogen-containing base, and a five-carbon sugar c. phosphate group, a nitrogen-containing base, and a hydrocarbon d. phosphate group, a nitrogen-containing base, and a five-carbon sugar e. sulfhydryl group, a nitrogen-containing base, and a five-carbon sugar