When a phosphate group is removed from an ATP molecule,
A.) a substantial amount of energy is released.
B.) an enzyme if formed.
C.) energy is stored.
D.) a substantial amount of energy is used.
Ans: A.) a substantial amount of energy is released.
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Water's density and, consequently, its buoyancy decrease at warmer temperatures. Considering the impact of temperature, and the table above, in which environment should diatoms sinking be slowest?
A) cold fresh water B) warm fresh water C) cold seawater D) warm seawater
When two atoms share a pair of electrons, this type of chemical bond is
A. ionic. B. covalent. C. hydrogen. D. negative-positive.
The reserve food in angiosperm seeds is stored in a special tissue called:
A) nectar. B) the sporophyte. C) the seed coat. D) endosperm.
The symptoms that occur in cyclic 48 to 72 hour episodes in a malaria patient are
A. sore throat, low grade fever, and swollen lymph nodes. B. urinary frequency and pain, and vaginal discharge. C. chills, fever, and sweating. D. bloody, mucus-filled stools, fever, diarrhea, and weight loss. E. fever, swollen lymph nodes, and joint pain.