A particular carbon isotope has an atomic number of 6 and an atomic mass of 14. The respective number of neutrons, protons, and electrons that this carbon isotope has is _______.
Fill in the blank(s) with the appropriate word(s).
Answer: 8 / 6 / 6
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Proteins are polymers of ____
a. amino acids b. monosaccharides c. steroids d. nucleotides e. phospholipids
Is Tina a potential carrier of the Hemophilia A allele?
a. Yes b. No
Which of the following is a reasonable explanation for why unsaturated fatty acids help keep a membrane more fluid at lower temperatures?
A) The double bonds form kinks in the fatty acid tails, preventing adjacent lipids from packing tightly. B) Unsaturated fatty acids have a higher cholesterol content and, therefore, more cholesterol in membranes. C) Unsaturated fatty acids are more polar than saturated fatty acids. D) The double bonds block interaction among the hydrophilic head groups of the lipids.
What is the trophic level of the robin in this food chain? Oak tree > caterpillar > robin > fox
a) first-level consumer b) third-level consumer c) producer d) second-level consumer