What feature on the surface of mars caused scientist to speculate that water was once found there? ? a.)snowb.)ice covered lakes c.)mountainsd.)channels

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.