The partial negative charge at one end of the water molecule is attracted to a partial positive charge of another water molecule. What is this type of attraction called?
a. a polar covalent bond
b. an ionic bond
c. a hydration shell
d. a hydrogen bond
e. a hydrophobic bond
Ans: d. a hydrogen bond
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Answer the following statement true (T) or false (F)
The area directly below the neritic zone is called:
a. abyssal plain. b. ocean basin. c. trench. d. continental margin. e. hadal zone.
Which of the following is NOT an event in cell
division in animals?
a. contractile rings wrap around the cell’s middle b. cleavage furrow forms c. cell pinches into d. a cell plate partitions the cytoplasm e. all of these ARE events in cell division in animals
An ancestral species and all its evolutionary descendants define a(n) ________
A) outgroup B) clade C) genus D) ingroup