The three particle that make up atoms are

a. protons , neutrons, isotops
b. neutrons , protons, electrons
c. positive , negatives, neutrons


Answer: b. neutrons , protons, electrons

Biology & Microbiology

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When the blood becomes acidic, the kidneys ____

a. produce extra bicarbonate b. reabsorb H+

c. secrete carbon dioxide d. produce water e. remove blood buffers

Biology & Microbiology

Which group uses light energy to break down organic molecules from their environment?

a. eukaryotic photoautotrophs b. bacterial photoautotrophs c. eukaryotic photoheterotrophs d. bacterial photoheterotrophs e. all chemoheterotrophs

Biology & Microbiology

How can one justify using island biogeography theory on the tops of mountains?

A) Metapopulation dynamics are similar. B) The same species exist in the two habitats. C) Moving between mountaintops and islands is similarly challenging. D) The theory does not apply.

Biology & Microbiology

Transfer of random pieces of DNA mediated by phage is known as

A) transformation of competent cells. B) generalized transduction. C) conjugation. D) transposition. E) specialized transduction.

Biology & Microbiology