Which of these atoms is most likely to be involved in a chemical reaction?

A) helium (atomic number 2)
B) potassium (atomic number 19)
C) neon (atomic number 10)
D) argon (atomic number 18)
E) xenon (atomic number 54)


B) potassium (atomic number 19)

Biology & Microbiology

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_____________________develops from physiological adaptations that change brain function when exposed to certain environmental triggers

Fill in the blank(s) with correct word

Biology & Microbiology

Which non-mammal organism has a connection to supply nutrients to developing embryos similar to the mammals?

a. sea snake b. sea turtles c. hammerhead shark d. manta ray e. sea turtle

Biology & Microbiology

Osmosis requires a ________ membrane that is ________ to solute molecules and permeable to water molecules

Fill in the blank with correct word.

Biology & Microbiology

On the basis of this figure, multicellularity in plants and opisthokonts:

a. has the same evolutionary origin. b. is independently derived in each lineage. c. is fixed within the each lineage (all organisms are multicellular). d. originated in the amoebozoa.

Biology & Microbiology